Oh my God! Kaya pala. Kanina pa ako, hindi ko pala na-add yung scene. Hello po.
Sorry. Sorry. Pasensya talaga. I'm sorry.
O, diba? Sobrang ano ko ngayon. Sobrang lutang.
Eto, okay na ba? Meron na bang sounds? Sorry guys.
Sorry. Pasensya. Hindi ko talaga na-add. Akala ko...
kung nagsasalita na actually ako dito kanina pa. Okay, how about the others guys? Okay, so balikan ko na lang. So sa mga bago po, dito na po tayo sa ating level 1 free intensive final coaching for chemistry. Set 2 na po tayo.
Okay, meron po tayong tatlong sets at saka yung dalawang special sets. So sa Wednesday, dito po, today, we'll be having our set 2. Bukas po is set... 3, ipagpalit ko po siya sa special set para hindi po kayo mabudol again.
Okay? So, yun, sa mga gusto pang kumuha or mag-avail po sa ating compedium, available pa din po ito. Meron po tayong 6 ng macboards aside from this, ano, aside from the books. At saka, kung gusto nyo pa talaga, pwede po kayong mag-inquire for our level 2. 300 pesos lang po ito. Super sulit na po on top of the free final coaching natin.
So yun lang. And good evening sa lahat. Pwede na ba tayong mag-review because we will be having 35 items for tonight. Okay? 35 items for tonight.
Pasensya talaga guys, medyo lutang ako ngayon. Hihi. Okay? Oh, by the way, kindly ready your ball pen at saka pencil.
Ball pen at saka paper. Gusto ko malaman yung scores nyo afterwards. And ilan lang tayo ngayon, 131. Feel ko talaga nabugbog kayo sa ano, kahapon. Totoo ba guys, nabugbog kayo sa 1 to 20 na items? Feel ko, kasi ang liit lang natin ngayon, 135. Feel ko talaga.
Sorry guys, this is for you talaga. May purpose po ako bakit ko nilagay iyong 1 to 20 na medyo ano siya. Medyo bago sa inyo, medyo mahirap i-analyze para naman ma-practice kayo para pagdating na examination hindi kayo masyasyak.
Yes, kasi very unpredictable po kung ano ang ilalagay ni PRCS na examination. Hindi natin alam, no one can actually predict that one. or even the RCs or even the other lecturers na nakikita ninyo online.
Okay? 1 to 20. Ngayon, hindi na kayo dapat sumuko kasi meron pa tayong special set by Friday. Okay?
May special set pa tayo by Friday. Okay? Sige, sige, sige.
So, let's start with number 1. The process of experimentally determining the volume of a solution equivalent to a known mass of a pure substance is referred to as what? Neutralization, titration, standardization, or dissolution. So ang hinahanap natin is an experimentation para ma-determine natin yung volume sa solution equivalent to a known mass of a pure substance. Anong process ang ginagawa natin sa laboratory? And I'm sure nagawa nyo natin.
ito sa laboratory in your undergrad or even in your high school years. Okay? A, B, C, or D, lapag yung sagot sa ating comsec.
Go. Sabi ni Ma'am Christy, giving up will never be an option. Yes. It shouldn't be.
Pero may plan naman si Lord para sa ating lahat, diba? And isa pa, walang we are one family of science majors here. Okay? So, dapat lahat talaga papasa.
Yan ang isusur ko po sa inyo. Okay. Number one, what is this?
A, B, C, or D? So, we have neutralization. Ito yung paulit-ulit kong diniscuss noon pa.
Titration is yung experimentation na... Favorite natin lahat, yung color pink. Standardization is a new word for you, I'm sure.
Dissolution is, parang nakalimutan nyo na. Okay? Saan dito yung experimentation? Ah.
So, ang sagot dito guys, is what? Is titration. Okay?
Titration. Now. Hmm.
Now. Ano ang technical term or... yung aka ni titration. What is that? Anong two words yan?
Yung aka ni titration in technical terms. Go. Anong sagot?
Meron siyang other term. Anong other term ni titration sa laboratory setting or sa anak kem? Okay, very good. This is volumetric analysis. This is volumetric analysis.
Kaya, yung question na iyon, ito, it talks more about the volume of a solution of a known substance sa isang pure substance. So, volumetric analysis, a.k.a. as titration. So, ano itong method?
This is a general term on which yung method na ito is ginagawa natin for quantitative... purposes for quantitative chemical analysis on which yung substance, yung amount ng substance is determined by the measurement of the volume. And it is commonly used to determine the unknown concentration of a known reactant. And it is often referred to as titration.
Titration yung nasa laboratory manual po natin. So, let's have the terms. Volumetric analysis, this involves the preparation, storage, at saka measurement of volume chemicals for analysis.
What is volumetric titrimetry? Titrimetry, this is the quantitative chemical analysis which determines the volume of a solution of accurately known concentration that is known to require to react quantitatively with the analyte. So merong analyte.
Ano itong analyte na ito? This is... the concentration na dapat i-determine. Okay?
Yung volume ng titrant required to just completely react with the analyte is what we call titer. Okay? Titer. Now, we have the other definitions.
Sa titration, ito ay isang process pa din in which there is a standard reagent na ginagamit natin that is being added to a solution of that analyte until there will be a reaction sa dalawa. Okay? dapat makomplete talaga yung reaction. Kaya, yung pagtititrate natin noon, yung pink na substance, dapat sigurado at parang... o ng exact amount para makuha natin, makomplete po yung reaction niya.
And the reagent solution of that accurately known concentration is what we call the standard solution. Sa options, meron tayong standardization. Standardization naman, that is a process to determine the concentration of a solution, of a known concentration, by titrating with a primary standard.
So gumamit na po tayo ng standard or ng... primary standard para makuha natin yung titration process. Okay.
Ano ang ginagamit natin sa laboratory kapag nagtatitrate tayo? Ito yun sila. We have the pipette, the burette, yung indicator, titrant, at saka yung analyte. Okay.
So, ito yung mga set, ito yung setup natin. Ito yung ginagamit. Okay.
And ano ang mga equipment dito? These are the equipments actually, but Let's have the definition or ano yung mga functions nila. Si pipette, this is the one na ginagamit natin to measure accurately at saka precisely yung mga volumes of solutions.
Sino yung si burette, yung may kamahalan kapag na bibiyak natin, diba? This is for pouring measured volumes of solutions. Conical flask for mixing.
Wash bottle naman, ito yung nilalagyan natin ng distilled water para to clean. the apparatuses. Funnel at yung embudo para mag-transfer ng liquids without spilling and yung volumetric flux this is the flux na ginagamit natin to make up accurate volumes sa mga solutions.
Okay? Yung neutralization reaction is just acid plus base, makakagawa po siya ng water at saka salt. So there is na neutralize yung acid at saka basic na substance.
Dissolution naman, Ito is yung process in which a substance mixes thoroughly in another substance. Yan yung dissolution. Say for example, yung salt at saka water, kapag nag-undergo ng process of dissolution, magiging salt solution siya afterwards. Alright? Let's have number 2. No more than 2 electrons can occupy the first orbital at the same time.
This is according to what? Octet rule? Principle of uncertainty? Hans'rule or Pauli's exclusion principle.
Anong sagot nyo sa number 2? Go. Okay, number 2. Go ahead and answer. No more than 2 electrons can occupy the first orbital at the same time.
What is this? I'm sure na nadaanan nyo na ito noong nag-undergrad kayo at saka sa high school. This is one of the topics talaga na medyo duguan.
Okay, iba't iba yung sagot natin. May A at saka merong letter D. So, sino kaya sa dalawa?
Okay, ang tamang sagot mo dito in where no more than two electrons can occupy the first orbital at the same time. This is Pauli's Exclusion Principle. Okay?
Pauli's Exclusion Principle. So, ito yun. Itong principle na ito, it states that wala talagang dalawang electrons na hindi sila pwede na magkaroon ng same set of quantum numbers.
So, let's make it simple. Ang meaning dyan is that each orbital dito, nakakahold lang siya ng maximum of two. electrons.
And yung mga electrons na ito, it must have an opposite spin. Okay? Opposite spin or anti-parallel.
So, itong principle na ito, this is why the first orbital, which is the 1s, di ba yung 1s dyan, can only hold 2 electrons. Sino yung octet rule? Yung octet rule po is the one that describes yung preference ng atom para magkaroon siya ng 8 electrons sa kanyang valence shell.
Okay? Octetrol 8, 8 valence shell. Now, going to Heisenberg's uncertainty principle.
Ito yung sa physics, diba? Modern physics na topic. And according to this principle, yung position, remember ha, si position at saka si momentum. Lumabas din po yan.
Si position at saka momentum. Sa isang electron, cannot be determined simultaneously with absolute action. akyo rasi.
Remember, position and momentum Heisenberg uncertainty principle. Now, last. Sino si Hans Ruhl? Hans Ruhl, this is the statement here. Electrons fill a subshell singly by or before forming any pairs and each electron in a single occupied orbital has the same spin.
So meaning to say, it states that yung mga electrons natin, it will fill the degenerate... orbitals of the same energy before siya mag-pipare doon sa others. Para ma-minimize yung electron-electron repulsion.
Para walang ma-re-repel sa kanila. Let's have number 3. Which statements is characteristic of a non-metallic material? So we are talking about non-metallic materials. Non-metallic materials are Good conductor ba?
Good conductor of heat? The oxides form basis solution with water? The oxides form acid solution with water?
What is your answer dito? Number three, go. Hello po, Ma'am Christine. Bumisita naman si Ma'am Tin again.
Huwag po kayo magsawa, ma'am bumisita, Ma'am Tin. Kayo po talaga ang inspiration ng mga September takers. Magiging happy yung mga September takers kasi nakikita nila talaga na bumabalik at bumabalik yung mga hirator natin na pumasa in the past batches.
Thank you, ma'am. Okay. Matanong ko kayo. Ito, familiar nyo ba ang concept dito about metallic at non-metallic materials?
Feel ko hindi. Feel ko bago ito sa inyo. If I'm not mistaken.
Lahat kayo is letter C. But letter C lahat kayo. Bakit letter C guys?
Ano ba ang non-metallic materials? Diba? Non-metallic versus metallic ones.
What is that distinguishing feature? Diba? Diba?
We have the oxides. Yung oxides ng non-metallic at saka metallic material. Pwede siya maging basic solution.
Pwede din siyang acidic. Sino sa kanila yung basic? Sino sa kanila yung acidic? Yan yung sagot dyan sa number 3. So, hindi na si A, hindi na si B.
Nakay letter C at saka letter D na. Sino sa dalawa? Okay? Sige? So, let's have the answer.
So, yung non-metallic materials, just remember, non-metallic... These are the oxides that form basic or acid. Okay. This is acid solution with water. Okay.
Acid solution with water. Diba? Yung mga oxides natin balikan ha.
Balikan natin yung oxides. Okay. Ito yung mga oxides. Once it will form the non-metallic oxides, diba?
Plus water, yung pH nya is bababa. Magiging acid sya. Yung mga metal oxide naman, it will go to The basic property. Okay?
Greater than 7 yung pH niya. Again ha? Non-metal oxides, addition of water, pH will be decreased.
Thus, acid siya dapat. Metal oxide, water will be added. Magiging greater than 7 yung pH. Hence, dapat basic siya. Alright?
Sige. Let's have the concept again with metals at saka non-metals. Yung physical properties naman niya. So yung mga metals natin, these have a metallic cluster of course, good conductors sila, high melting at saka high density, malleable, it can be hammered into sheets, it can also be ductile, and usually solid siya at room temperature.
Yung mga non-metals naman, they are very dull, poor conductors sila, hindi sila ductile, at saka madali silang mababasag. Pwede silang maging solid, pwedeng liquid, pwede ding gas at room temperature. It depends on the physical property or the characteristic of that certain non-metal. Let's have number 4. A yellow solid substance changes into a violet gas when heat is applied. The gas resolidifies to the original yellow or solid in the cooler part of the tube.
The yellow solid is what? A metalloid? A mixture? compound or an element. Sino ba dito or sino ba talaga yung identity ng solid substance na ito?
A, B, C, or D? Pakisagot. Go.
Hello po, Ma'am Harley. Okay lang po. Medyo na-late din po akong nag-start kanina. Kaya number 4 pa tayo. Okay, what is this?
Ito guys. This is one of the components sa mga fireworks. And I think na-post ko siya sa page. Yung mga components ni fireworks.
Ang kadehalan doon is that yung mga fireworks natin, iba't iba yung kulay. Isa dyan is the component. So ano yung component ng ating fireworks? Another clue. Yung sa flame test natin, diba?
Ibat-iba yung mga kulay niya. From solid, kapag mag-add tayo ng heat, magiging ano siya, mag-iba yung kulay sa flame test. This one is actually a flame test. This is a flame test.
So, ano ang sinusunog natin dito? Itong yellow solid substance na ito. Ano ba siya?
Metalloid mixture compounder element. Go. Alright.
So, ang sagot dyan is letter D. That is an element. Question.
Anong element ito? Yellow siya kapag solid, magiging violet siya kapag ina-apply natin yung heat. What element? What do you think is that element?
Yung yellow. Nandito si Sir Bubox. Hello, Box.
One of our hirators dito sa Illigan City. Ano sa tingin nyo ang yellow substance na ito? This is sulfur. Okay? Sulfur po ito.
Or pwede ding iodine. But most likely, the common one is sulfur. Okay? So, balikan natin.
Bakit hindi compound? Remember ha, kapag yung mga compounds natin may addition of heat, there will be decomposition na mag-uukor. Okay?
Decomposition. So, may nadecompose sa kanilang dalawa. So, iba't iba yung kulay dapat.
So, ito, Isa lang yung kulay, violet. At si sulfur, yung yellow sulfur natin na solid, kapag ina-apply natin sa flame test, magiging violet siya. And this is an element.
Balikan natin yung concept of the pure substances versus the mixtures. Pure substance, these are the elements at saka yung compounds. Elements, they contain atoms of a single atomic number and it has a well-defined physical properties. Kaya yung kulay niya, well-defined na violet lang talaga.
Kasi isa lang siya. Yung compound natin, it contains atoms of two or more elements, chemically combined, and have well-defined physical properties too. Pero, madami na pong elements na nag-involve. Diba? Mixture.
Mixture meron tayong dalawa, homo at saka yung hetero. Homogeneous, one phase. Ano? Yung mga components niya, hindi na siya distinguishable.
Kasi one phase na siya. Heterogeneous, yung lahat ng mga components, pwede pa natin ma-observe. Okay?
Pwede pa natin siyang ma-observe. Let's have number 5. Neutrons are neutral particles used in atom smashing and was discovered by whom? James Chadwick, J.J. Thompson, John Dalton, or Niels Bohr.
Sino sa kanila ang nakadiskubre ng ating neutrons? Go, sagot! Neutrons are neutral particles used in atom smashing and was discovered by sino? Sinong uncle?
Very good. Sir, ano pong klaseng type na white polo po ang dapat suotin? Anong klase?
Dapat may collar. White polo, mayroong collar dito. Yan yun ang need. Huwag na kayong bumili ng medyo mahal.
Pwede na yung tag 100 pesos. Huwag na yung branded. Kasi, once you lang yan, susuotin. And huwag nyo nang susuotin before sa results. Yan yung ano, ang tawag natin, myth.
Yan yung myth. Kasi kapag susuotin nyo na ulit, tapos wala pang result, madidehado kayo. Diba? Merong mga ganyan sa examination.
Okay? Number five, of course, this is James Chadwick. Okay?
James Chadwick. Siya po ang naka-discovery ng ating neutron. So, paano niya ginawa yun?
So, may ginamit siya ng beryllium. Binombard niya si beryllium with the alpha rays. Ano yung alpha rays natin? Yung helium nuclei.
Okay? So, yun. There is a time na yung the Curie, yung Curie siblings, they have discovered the mysterious type of radiation that is capable for knocking protons out sa paraffin wax.
But hindi pa nila alam na neutron pala yun. So that is why sa experimentation ni Chadwick, he later discovered that yung mysterious na component doon sa Curie siblings, neutron pala yung responsible doon. So ano yung ginamit ni Chadwick? Beryllium at saka alpha rays, that is the component is the helium nuclei. J.J.
Thomson naman, we have his plump padding model, okay? And he discovered what? The electrons, okay?
Now, we have John Dalton also. So, sabi niya in 1803, atoms are tiny, hard spheres that can be split up. So, yung spherical model of an atom, kay John Dalton yan. Kay Ernest Rutherford naman is the one who discovered the protons.
Now... Let's have Bohr's. So ito yung atomic model ni Bohr's. So sabi ni Bohr, yung electrons daw, it exists in energy levels and it is being, nandyan siya sa mga defined orbits niya around the nucleus. And each orbit sa atom na yan, it corresponds to a different energy level.
And the further out the orbit, the higher. The energy level. The more na magkalayo sa, the more na magkataang, magka-increase yung energy level.
Number six. An instrument used in identifying elements by the wavelength, they refract. An instrument used in identifying elements by the wavelength, they refract.
Ano ang gagamitin natin? Cyclotron, oscillator, spectroscope, or cloud chamber. Go, sagot.
Sir, need po ba talaga mag-black shoes? Yes po. Kasi pag hindi ka mag-black, merong mga proctor na very strict, hindi ka papasukin.
At saka kapag hindi yung black yung shoes mo, parang ikaw yung among us ng whole batch or yung nagtitake sa inyong room. Kaya hanap ka na lang ng pwede mong mahiramin na black shoes. Much better kung black para clean.
Clean siya talaga kapag uniform kayong lahat. Okay, very good. Alam ng lahat.
So, this is, or you will use the spectroscope. Okay? Ito yung spectroscope natin. Ito ay isang instrumento that is used to identify elements by what?
By analyzing the light they emit. Okay? So, kapag ini-emit or meron ng emission, doon makikita natin yung mga iba't ibang mga... Wavelength.
Bakit? Kasi from that grating, nire-refract niya into a spectrum of colors. Si cyclotron, okay? Ito yung si cyclotron. This is a particle accelerator na ginagamit to accelerate charged particles to high energies.
So parang pinapa-excite niya yung mga particles para mag-around siya ng high energies. Okay? This is the cyclo... Now, we have the oscillator. Ito ay ginagamit natin or this is an electronic circuit that will produce repetitive waveforms.
Say for example, what type of waveform? Yung mga sine waves. Ano? Next, we have the option 4, we have the Wilson Cloud Chamber. Ano itong Wilson Cloud Chamber?
Ito ay ginagamit natin para maka-visualize tayo ng yung dadaanan ng mga charge. particles. So, say for example if you are experimenting or if you are observing the alpha and beta particles. Itong cloud chamber ang gagamitin ninyo para makita yung pathway niya.
Alright, number seven. The first nuclear reactor was built in 1942 at the University of Chicago under the direction of who? Is it William Roentgen? Is it Lawrence?
Is it letter C, Enrico Fermi? Or is it C, Saudi? Number 7, what's your answer?
We are 167 surviving zombies for today. Hopefully, abot tayo ng 200. Feel ko nabugbog kayo sa... Nabugbog yung absent kahapon.
Parang ayoko na mag-special set. Nawawala yung iba. Sige lang guys, I will make sure...
I won't make it sure. Gusto ko papahirapan ko kayo. Basta, humanda kayo sa Friday, guys. Sir, paano yung style sa pagshade ng scantron? Ano?
Di ba maliit lang siya? Maliit na rectangle. Ang gagawin ninyo is, ano, hindi siya shade. Right the sides.
Tapos, 1, 2, 3, 4, 5, 6. Yan lang. Make a box para sure na hindi ka lalagpas. Tapos, i-shade ninyo yung gitna.
That easy. Huwag na kayong mag-ano. Kapag nag-shade, na-shade nyo na siya, hindi ibig sabihin na dapat talaga makapal. As long as na-shade.
Mababasa at mababasa din yan ng scantron. Oo. Sirs, ang video po ako mag-start to watch, sirs, sa YouTube. Panoorin mo, sir, yung refresher series. Kasi lecture discussion po iyon sa New TOS.
Dapat ba maong ampas? Bawal ang slacks? Actually, mas preferable kapag slacks.
Bakit? Ang slacks kasi, medyo hindi siya bulky. Kapag nagmamaong ka, bulky siya masyado.
So... Dapat talaga yung kasuotan ninyo pagdating sa examination should be as comfortable as possible. Slacks is preferable talaga.
Huwag na yung maong. Medyo mabigat na po siya. Okay? At samahan nyo na po ng red underwear. Okay, seven.
Okay, seven. Iba't iba yung sagot. This is letter C. Si Enrico.
Fermi. Alright? Enrico Fermi, the first nuclear reactor.
Question. Trivia tayo. Ano ang tawag sa ginawa niya na nuclear reactor? Meron kasing tawag doon. What is that?
Sige po, Ma'am Jai. Sleep well po. Okay.
Ano ang tawag sa nuclear reactor na ginawa ni Enrico Fermi? Sir, makaluya ang questions kahapon. Hehe.
Sige lang, guys. May reason yun. Okay. Ano pong eraser maganda gamitin?
Sir, ang ginamit ko po is staidler. Favorite ko kasi si staidler. Pero in any, ano siya, any eraser will do. But wag yung eraser na ano, yung medyo hindi mahal, bumili kayo ng medyo mahal para sure-sure talaga na ma-erase ninyo.
Okay? So, ang tawag noon is the Chicago Pile 1. Very good. Alam nyo talaga.
First nuclear reactor, aka the Chicago Pile 1, kay Enrico Fermi. Now, we have Lorenz. Ano yung na-invent ni Lorenz?
Yan yung cyclotron. Lawrence is for Cyclotron. William Ruentgen is for X-rays. Si Soddy naman is ano siya? So siya yung naka-discover na lahat ng mga radioactive preparations were not unique elements but nakita niya na some of them are or were variants of known elements.
So ito yung mga achievements or mga accomplishments ng mga uncles nyo dito. Number 8, very easy. If bromine atom gains an electron, it becomes a what?
Positive ion, neutral ion, negative ion or none of the above. Go number 8. Sir, these are mantong mga questions. Iwan ko lang.
From a source? Hindi, nag-re-research din talaga ako. Busy ako, hindi talaga ako nag-put ng mga random questions out of the blue. Basta, may purpose iyon. Tingnan na natin.
Sir, pwede balik ko nagsuot ang polo sa pre-board sa pagtik na mismo sa board? Yes, pwede pwede. Basta, pagkatapos ng exam, itapon nyo na yan. Or, itago ninyo until the results will arrive sa December. Okay?
Si Brumine Atom will gain an electron. What will it become? Okay, very good. Magiging negative ions, yeah. Magiging Br negative.
Number nine. Periodic law states that the chemical and physical properties are a periodic function of their what? Quantum number, atomic mass, mass number, or atomic number. Periodic law states that the chemical and physical properties are a periodic function of their what? Quantum, atomic mass, mass number, or atomic number.
Anong sagot sa number nine? Sir, ang Macboard ba? Kaibalik pa natunin mo.
Yes po. Always present yung Macboard natin for the Top Natural Package Compendium users. Hindi ko pa sa actually na stop. Sige lang. At yung series, yung sa mga nasa official GC natin, please, sagutan nyo na po yung series 1 to 6 because I will cut off that one.
Okay? Ika-cut off ko siya. Tapos, marireopen again for mastery by Friday.
Kasama na yung set 1, set 2, at set 3 dito sa final coaching natin sa chemistry. Isasama ko na ito. So, magpo-post test tayo sa final coaching. Sa series 1 to 6, pre-test yung ginagawa ko.
But now, you need to view the videos muna para pagdating sa post test, perfect nyo na talaga. Okay? Kasi ang ginagawa kasi ng iba... sa series 1 to 6, ito yung napansin ko. They will open the zip grade, tapos hindi nila sinasagutan.
They will screenshot it, tapos madaming zero doon sa end ko. Kaya yun, nashock ako, pero okay lang. As long as you have reviewed all of the set items.
Kasi ngayon, iniba ko na. Post-test na. Discussion muna para for mastery purposes.
Okay? So, hintayin ninyo yung post-test natin for set 1, 2, and 3 by Friday. Kaya, binaliktad ko yung special set.
Set 3 tayo bukas, special set is by Friday. Okay? Number 9, lahat is letter D.
Okay? Atomic number. So, sino ito?
Ay, kanino itong periodic law? O. Kay Henry mostly. So sa kanyang law, o sa statement na ito, the chemical and physical properties of the elements are periodic functions of their atomic numbers.
So let's put it in other words, in simpler terms. When an element are arranged in order of increasing atomic number, makikita po natin na merong periodic repetition of their properties. Yan ang nangyayari sa periodic law. Number 10. What is an instrument for detecting radioactivity? Is it synchrotron, cloud chamber, cyclotron, or Geiger-Muller counter?
Ano ang gagamitin natin to detect radioactivity? A, B, C, or D? Ano ang gagamitin ninyo? Go! Sir, yung Macboard, irarationalize nyo po ba?
Hindi na po. Magbibigay na po ako ng answer key once you have reached the 75 above na score. Hindi ko na irarationalize.
Kasi alam nyo na. That is why meron akong ceiling para makuha ninyo yung answer key. Kasi naman, medyo advanced yung mga users natin. Kasi binasan nyo na ng lahat ng mga books. So, no need for me to rationalize.
Kasi nasagutan nyo na. Alam nyo na yung sagot. Okay, number 10. Alam nyo, very good.
This is, you will use the Geiger-Muller counter. Okay? So, ito yung instrument.
nakita ko itong Geiger counter muller sa documentary ng Chernobyl incident. Nalaman ko talaga ito, ah ito pala yung instrument. So what is this instrument used for?
Para ma-detect yung mga ionizing radiation. Yung gem counter po, these are actually gas detectors na nakaka-detect po ng mga ionizing radiations. Example, yung mga alpha, beta, at saka yung mga gamma particles.
Okay? Kapag nag-beep po siya, meaning to say, merong exposure of radiation doon. Merong radioactivity na nangyayari doon sa area. Number 11. The interactions responsible for holding together electrons to their atom, as well as for combining atoms and molecules to produce larger bodies, are what?
Gravitational, weak nuclear, electromagnetic, or strong nuclear. Saan or sino dito sa four fundamental forces ang responsible? for holding together electrons to their atom, who is this? A, B, C, or D?
What's your answer? Mas okay post-test, sir. Di maka 80 sub 3 test. Oo.
Diba? Binaliktad ko. There is a reason again. Bakit ko ginawa yung post-test? Kasi gusto ko talagang panoorin nyo muna.
Yung iba kasi, nag-focus lang sa material. Pasensya talaga sa mga gustong ano, gustong makakuha ng copy, hindi po ako nagbibigay. Because you will tend to memorize it.
And the way you memorize it, hindi talaga yan magagamit ninyo sa examination, if purely memorization. Sa Gen Ed, pwede. Pwedeng memorization.
Pero sa Majorship po, hindi. Hindi kasi natin alam kung ano ang structuring ng question na ilalatag ni PRC sa examination ninyo. Yes, it is very unpredictable.
So you need to view the videos talaga if possible, if kaya. Gawin nyo po akong chipmunk pwedeng pwede po para makahabol kayo. Huwag na huwag nyo i-memorize yung answers.
Huwag na huwag talaga. Yan talaga yung suggestion ko from... The first batch.
Okay, number 11, what is this? This is? Tingnan ko yung mga sagot ninyo.
Halos lahat is letter C and that is correct. Very good, guys. Electromagnetic.
Follow-up question. The forces that exist among elementary particles that undergo slow decay processes are what? Anong?
fundamental force ito. Strong, gravitational, weak, or electromagnetic? Sagot sa number 12. Go! Hello po, Aurora Bell. Sa mga team replay natin dyan, nanonood na talaga sa live session.
Okay? Welcome na welcome po kayo dito, Ma'am Aurora. Number 12, what is this?
Slow decaying process or radioactive decay, ano ito? This is the weak nuclear forces. So, balikan natin yung concept ng apat na fundamental forces.
We have the strong force that binds the nucleus. Electromagnetic force binds the atoms. Weak force naman for radioactive decay. Gravitational force that binds everything in outer space.
So, we have also this summary here for the four fundamental forces. Gravity The particles that are experiencing gravity is lahat na may mass. Okay?
Sino yung force carrier particle? Yan si graviton. But, hindi pa siya na-observe.
Range niya is infinity. Lahat-lahat is makukuha niya talaga. Weak force naman, particle decay. What particles?
Quarks at saka leptons. What are the force carrier particles? The W plus W, yung mga WZ.
particles natin. Okay? Electromagnetism acts between electrically charged particles. Particles experiencing are they electrically charged? The photon, infinity yung range.
Strong force naman binds quarks together. Particles experiencing quarks and gluons. Force carrier particle, the gluons, and short range. And, eto, please remember this, yung relative strength ng ating fundamental particles.
Gravity is the weakest. Strong force is the strongest. Gravity, weak, electromagnetism, at saka strong force.
Yan yung ascending order niya patungo sa increasing relative strength. Number 13. When not properly preserved at home, we observe a characteristic smell of rotting meal of a dead fish. This is due to what organic compound? Is it amine, aromatic hydrocarbons, carboxylic acid, saturated...
hydrocarbons. Ito, natackle natin ito sa set 1. Diba? May nilatag ako na infographics doon, saan doon ang may bambahong isda? A, B, C, or D?
What's your answer? Go. Okay? Sino dito ang may other na isda? Yung sa set 1 is ester yun.
Diba? Ester kapag perfume. Kapag mabahong isda, ano siya dapat? Dapat marirecall ninyo yung infographic na nilatag ko.
Okay? So, this is... Umiikot na daw yung mundo ni Ma'am Abby.
Ma'am Abby! pwede ka pong mag-take ng iron para hindi ka medyo nahihilo. Dapat may iron supplement ka po.
Number 13, this is the amines. Okay, amines. Basta amine, fishy or rotten.
Putrid, we have the thiols. Ito lang yung dapat, ang major-major na dapat nyo i-remember. Si thiols, putrid, amines, fishy or rotten.
esters, perfume, or fruity, at saka yung terpenes na fresh at saka woody. Nasa kanilang apat ang pwede or parang possible na lalabas. So balikan natin ito yung mga examples.
Alkanes, medyo wala siyang odor. Amine, fishy, alcohol, it varies. Thiol, rotten eggs or farts, parang siyang utot. Carboxylic acid is sour.
At halide naman is sickeningly sweet. Number 15. Foams, salts, and emulsions belong to what kind of heterogeneous mixtures? Okay?
Is it solutions, suspensions, colloidal dispersions, or pure solutions? Foams, salts, at saka emulsions, saan sila na belong? A, B, C, or D?
Go! Sukit ako ng lindol si Ma'am Abby. Baka active yung ano nyo daan dyan, Ma'am.
Yung fault line. Malapit kayo sa fault line. O, number 15, diba? What is this? O, perfect na lahat.
Sobrang basic na, diba? This is letter C. These are actually colloids.
Okay? Sa colloids, again, Meron tayong dispersion medium at saka yung dispersed substance. I know for sure na memoryado nyo na itong mga examples.
Paulit-ulit ko kasing nilalagay ito. Let's have number 16. The carriers for weak interactions that were identified by Carlo Rubia and Simon van der Meer is what? Yung graviton, pion, XY particle, or yung W and Z particles. Ito.
Bago itong mga uncles ninyo, si Uncle Carlo Rubia at si Uncle Simon Vandermeer. Both of them actually, naka-receive sila ng Nobel Prize because of their what? Their discovery. Ano ang na-identify nila?
Go, sagot. Sabi ni Ma'am Melica, sino na naman yan? Ma'am Mel, by the way, panoorin nyo po yung Valentine series.
Nandoon po halos nila tagko na lahat ang mga scientist. Ano siya? Halfway pa iyon. O, panoorin nyo po ma'am.
Para makilala nyo ang mga sikat-sikat na mga uncles. Bago ito sa inyo, itong si Carlo Rubia at si Simon Vandermeer. Okay? Pero alam nyo itong Careers of Quick Interactions. Yan yung nilatag ko kanina.
Diba? Yung force carrier, sino kapag weak nuclear? That is the W and Z particles.
Okay? So, ito yung si Rubia at si Vandermeer. So, they have or they are the ones that discovered the field particles W and Z which are the communicators of weak interaction. Okay? Yung electromagnetic interaction, weak, ayun, tawag natin dito.
Kay glacial salam at saka yung kawainberg naman, yung theory of the unified weak and electromagnetic interaction. All of these are actually doon sa standard model natin. Later on, malalaman ninyo yung standard model, which is a follow-up question sa number 17 natin.
Which of the particles below include the electron, muon, at saka yung tau? Which of the particles include the electron, muon, at saka tau? Are these photons, mesons, baryons, or leptons?
Sagot. So meron tayong electron, meron tayong muon, meron tayong tau. Ano or saan ba natin sila ikaklassify?
Unsan naman sa... Ito guys, is nasa physics din to. Nasa model physics po ito guys. Okay?
So 17, anong particles ito? These are actually, what? These are leptons. Mga leptons po ito guys. Sige ha?
Ito po ang standard model of elementary particles. So, tingnan ninyong mabuti sila. Okay?
These are the three generations of matters, the fermions. Ito yung mga fermions. Bosons naman, ito. Okay? Ito yung mga bosons natin.
The gauge bosons at saka yung scalar bosons. The gauge bosons, we have the gluon, photon, z-boson at saka yung w-boson. The scalar bosons, we have the higgs. The lapis.
Leptons, we have electron, muon, tau, yung mga neutrino. Okay, leptons, mga neutrino. So we have the three sa standard model of elementary particles.
Leptons, fermions, at saka yung mga bosons. Let's have number 18. The process of reducing chemical system to ashes by burning it is what we call a roasting, inoculation, combustion, or incineration. Go, sagot. The process of reducing chemical system to ashes.
So magkakaroon kayo ng by-product na ash dito. Sino dito ang process na ito? Alright. Sige. Very good.
This is what? May ash. Again ha, may ash. This is letter D.
Of course, incineration. Diba? Sa environment na topic, ito po ang ginagamit natin for waste. treatment process that will involve combustion of organic substances na yung waste material, yung waste material sa incineration converts the waste into ash, flue gas, at saka heat. Basta may ash, we are talking about incineration.
Okay? Nandyan si combustion because that is a destructor. Destructor po iyon si combustion doon. Okay?
Basta may ash, remember incineration. Roasting po, this is a metallurgical process of heating the ore in presence of air or oxygen below its melting point. And it's usually done, ang ginagamit po dito is mga sulfide ores. Let's have combustion.
Yung mga nagsagot ng combustion, ito. Sa combustion, meron tayong dalawa, complete at saka incomplete. The combustion that requires more energy is the complete. Incomplete naman is yung less energy. Meaning to say, kapag less energy, not enough oxygen siya.
What are the products? Iba't iba yung products niya. Kapag complete combustion, we have carbon dioxide. And remember, kapag carbon dioxide, ito yung nagkukos ng climate change. Water naman for condensation or molding.
Sa incomplete, meron tayong isa, the carbon monoxide, which is the toxic substance. At saka, carbon, aka the soot or the particulates. At kapag nakalanghap ka nito, it will cause you breathing problems or more lung diseases. Anong kulay nitong dalawa? O, sa Bunsen burner, diba?
Na-try na natin ito sa activity natin sa laboratory. So, incomplete combustion meaning to say, yung air hole is closed. So, walang oxygen sa kanya. That is why incomplete yung combustion niya. Yung flame is yellow.
Okay? Is yellow. Complete combustion, magiging blue. Okay?
Magiging blue kasi meron siya oxygen to burn the gas. Yung air hole ni Bunsen burner is open. Complete combustion, open yung Bunsen burner.
Incomplete combustion, closed yung air hole. Number 19. Which of the following atoms has an octet? Which of the following atoms has an octet? Oxygen, Krypton, Bromine, or Magnesium?
Sino dito sa kanila ang nakatira sa rightmost side of the periodic table? Go, sagat. Sagat. Sagot.
Okay. Nakakapanghina pag andaming di alam. Ito kasi, yung strategy ko kasi guys, is the more learnings you have, the more bala na madadala ninyo sa examination.
Kaya it is very, very okay na yung feeling na marami ka pang hindi alam. That is because, di ba? You are thirsty to learn more. Okay?
you are thirsty to learn more. So meaning to say, yung sa brain cells ninyo or yung ano, sa skull ninyo, meron pang space to have new learnings para madala ninyo sa examination. Diba?
Medyo boring naman kapag alam nyo na lahat. Kasi, sinisigurado ko yung mga questions is bago para yan yung madala ninyo. Ibahin nyo po ako. Medyo marami ako mga bagong questions na ilalatag talaga.
Hindi ko talaga siya inuulit para po talaga sa inyo ito. Okay? So, okay lang po yan.
Yan na feeling. That is okay. Because that is a sign that you are progressing. That is a sign that you are progressing. Kasi naman, alam ninyo ang mga concepts na wala pa kayong idea.
So, anong dapat gagawin? Puntahan ninyo ang concept, basahin ninyo. i-research ninyo para makomprehend.
So that, ma-retain ninyo yung information when you take the examination. That is very okay po, proton. That is actually a good sign. Alright? Okay, number 19. Sino dito ang may octet?
This is... Excuse me. Okay.
We have the noble gases. Diba? The noble gases, which is, sinong noble gases dito? Si Krypton.
Saan yung mga noble gases? Nasa eighth octet. Helium, neon, argon, krypton, zion, at saka radon.
Balikan natin yung octet rule, diba? It describes an atom's preference for having 8 electrons in its valence shell. Octet rule, nasa rightmost side. Alright, let's have the next number, 20. Milk of magnesium has a pH of 10.5. It is classified as what?
Basic substance, neutral, acidic, or none of the above. Go! Diba?
Naricall nyo talaga sa question na iyon yung concept ng ating Predictable. Okay, very good, very good. Yes po, tama po kayo Miss Marie Curie.
pina-widen ko lang talaga yung mga learnings ninyo. The more information you will have, the more chances talaga na makakahirating kayo. Kaya, nang papansin ninyo sa mga past videos, hindi talaga mostly lahat is inuulit ko.
Bago po talaga every batch. To make sure na hindi medyo boring. Kaya, merong mga budol questions. So, pasensya na talaga, guys.
Okay lang yan. That's a good sign. Okay, 20, this is a very obvious one. Lahat kayo is correct, that is a basic substance.
Basic po kasi, greater than 7, that is a base. Less than 7, that is an acid. Okay, so acid natin, turns litmus paper red, tastes sour, feeling irritating, corrosive, and includes mga fruit juices.
Bases naman, red to blue. Bitter or soapy, slippery, including na yung mga baking soda, ammonia. Okay? 21. Which of the following does not belong to the group?
Eto. Which of the following does not belong to the group? Go. Number 21. Which of the following does not belong to the group?
Ito ba yung chinege ko? Wait, wait. Chinege ko ito, guys. Balikan natin, ha? Iba na yung options dito, sorry.
Okay, balikan natin. Wait, wait. Okay, ito. Ito yung options.
Which of the following does not belong to the group? A, acetic acid. B, benzoic acid. C, muriatic acid. Or D, sulfurous acid.
Sino kaya dito? Or how do we classify this? Different acids na ito.
A, B, C, or D, what's your answer? Go. Ilang items tayo? 35 po. 35. Okay.
O, diba sa acids natin, meron siyang classification na remember nyo pa, how do we classify acids by the way? Sige, I'll ask you guys. Balikan natin yung concept.
Remember the concept, visualize ninyo. Kapag acid, how do we classify these acids? Meron tayong dalawa.
Ano yun? Paano natin siya makaklassify? According to its acidity, diba? Kasi may mga acids na...
Weak acid at saka may mga acid na strong acid. Diba? Weak and strong. Very good.
Weak and strong. Question. Sino ang tatlo dyan na same sa group? Okay?
Sino ang hindi na belong sa kanilang tatlo? Okay? Sige, isa-isahin natin ha. Acetic acid. Is it weak or is it strong?
Acetic acid Is it weak or is it strong? Sige Acetic acid Weak ba siya or strong? Strong ba si acetic? Strong ba siya?
Isure ninyo. Strong ba si acetic? Weak acid po si acetic guys. Acetic is weak.
Weak acid si acetic. Benzoic acid. Is it weak or is it strong? Benzoic acid natin.
Weak or strong? Benzoic acid also is a weak acid. Weak acid po siya. Si acetic, weak.
Benzoic is weak. Sino sa C at saka D yung weak? Moriatic o si Sulfurus? Sino ang weak sa kanilang dalawa? Moriatic o si Sulfurus?
Si Sulfurus ay weak. The only one that is different from the three weak acid is yung Moriatic acid natin. Bakit?
Ano pala ang other name ng Moriatic acid? Ano ang other name ng Muriatic acid? Matanong ko kayo, what is that other name of muriatic acid?
Yes, panlinis ng CR. What is that other name? Yung common name ni muriatic. Domex.
Alright, hydrochloric acid, yung muriatic acid natin. Bakit siya meuretic kasi aqueous solution siya? HCL ha? So ito yung strong acids natin at saka yung mga weak acids that are one of the common examples. Okay ha?
Please remember the strong acids at saka yung mga weak acids natin. Usually yung mga questions na ganyan is lumalabas talaga sa major ship ninyo. Yung which of the following is not belong to the group?
Always yan. Kaya dapat ninyong alamin. Yung mga classification talaga.
Hindi lang sa chem, pati na yung sa ibang mga components. 22. Deuterium is an isotope of hydrogen. Its composition is called what? Ano ang composition ni deuterium as an isotope of hydrogen? A, B, C, or D?
Anong sagot ninyo? Go, number 22. Maka-weak naman ang questions. Sige lang, guys.
Okay lang yan. That is a good sign. Kasi alam ninyo, deuterium, di ba?
Meron tayong tatlong isotopes niya, hydrogen. O, nabanggit ko na yan in the past series. Di ba? Si deuterium, ano ang mga components niya in terms of sub-particles?
Balikan ninyo, image. I-image ninyo ang... ang deuterium. Ano ang meron sa kanya?
Okay? Ang meron sa kanya, of course, di ba na, sa tatlo, is nasa gitna siya. Di ba? Nasa gitna siya. Because si deuterium, it has what?
It has, wait lang. One proton, one neutron, at saka one electron. That is letter C.
Okay? Letter C. So, ito yun. Isang proton, isang neutron, at saka isang electron. Deuterium also is also called as hydrogen 2 or heavy nitrogen. Please remember this.
Deuterium. Heavy hydrogen or hydrogen 2. Meron siyang mass number na 2 at yung nucleus niya, meron pong tawag sa kanya. And that is the deuteron. Okay?
Deuteron. Hindi siya radioactive, itong deuterium na ito. And it was discovered by whom?
Uray in 1931. Yung deuteros po sa Greek term, it means second. Kaya nasa second po siya sa tatlong isotopes ng ating hydrogen. Number 23. Ozone is an allotropic form of what?
Ozone is an allotropic form of what? Oxygen, chlorine, nitrogen, or hydrogen. Go! Ozone is an allotropic form of what?
150 surviving zombies as of 11.30pm. Malapit na tayong matapos guys. 23 out of 35. Okay, 23. 23. 23 is, very good, alam nyo yung sagot. It is an allotrop of oxygen.
Okay, oxygen. Dioxygen, ozone, tetraoxygen, at saka yung octaoxygen. All of which are allotropes of oxygen.
Go, sagot. A, B, C, or D? Kinokompress natin siya ha.
Kinokompress. Okay, very good. So, ang mangyayari kapag kinokompress natin yung gaseous molecules, kinokompress natin siya, so yung particles is magiging closer to each other. So, therefore, mag-de-decrease yung distance na kanyang particles.
And once it will be mag-de-decrease yung distance, ma-pre-pressurize po siya. So, increasing dapat yung pressure dito. So, ito yung itsura. Diba? As you push down, okay, pushing down decreases the volume and increases the pressure because of compressibility of the gases.
Twenty-five. The substance which can be decomposed by heating is kanino or sino sa kanilang apat. Okay.
Substance which can be decomposed. Remember the reaction, yung decomposition reaction? So, sino ka sa kanila ang pwedeng madecompose or maka-undergo sa decomposition reaction?
Go, sagot. By heating, ha? Evaporating.
Heating, oo, tama nga. The substance which can be decomposed by heating is... Sino sa kanilang apat?
Decomposition ha? Decomposition. By heating pa talaga. My heating. Decomposition ha?
Imagine ninyo, o eto, bigyan ko kayo ng clue. Lahat, mostly ang sagot ninyo is water. Kapag hinihit natin si water, madidecompose ba na magiging hydrogen at saka oxygen?
Kapag hinihit natin or kapag na-evaporate si water? Diba mag-undergo lang siya ng phase change? Magiging, ano siya? Magiging water vapor po siya.
It is always, it is also the same. H2O. When it is heated.
Diba? H2O. Ididecompose natin.
Would it form hydrogen and water by heating? Hydrogen and oxygen? Hindi.
Hindi guys. Kasi magiging water vapor siya. Phase change iyan.
So, lipat bahay na kayo. Remember the reactions by heating. So ano o saan dito ang pwedeng-pwede na madidecompose? At least, na-visualize ninyo.
This is letter A, potassium chlorate. Balikan natin yung concept ng decomposition reaction. May isang mabibreakdown into two or more products. Yung water natin, hindi siya mabibreakdown by heating. Mabibreakdown lang po siya kapag gagamitan natin siya ng electrolysis.
Kapag evaporation lang, magiging gaseous phase lang po yung water. Still, it is H2O. Itong potassium chloride na ito, ito yung mangyayari sa kanya.
Nag-undergo siya ng decomposition reaction to produce potassium chloride at oxygen gas. Itong process na ito, itong potassium chloride, ginagamit natin siya sa laboratory setting at may i-add siya na catalyst. Ano yung catalyst dito? Yung manganese dioxide. Okay?
So, let's have a brief discussion about the thermal decomposition of organic matter. Diba? O ito.
We have oxidation, pyrolysis, evaporation, at saka vaporization. Oxidation, carbon combines with oxygen and is driven off as carbon monoxide at saka carbon dioxide. Pyrolysis naman, aka the fire breakdown.
Organic molecules are chemically altered then mostly driven off. Evaporation and vaporization, volatiles are driven off but not chemically altered. So we have these other terms, charring, also known as carbonization.
And also ignition. Ano yung ignition? Oxidation releases more heat than pyrolysis absorbs.
Alright? Number 26. Potassium atom, upon losing the outermost electron, becomes what? Okay?
There is a loss of electron here. Ano ang mangyayari kay potassium? Go.
Sagot. A, B, C, or D. Negative 2, plus 1, negative 1, or plus 2. Ang daming nakita na B.
Naaakit talaga. Okay. Sige. Sagat.
Potassium. Ano siya magiging? What will happen to that potassium?
Nine more items to go and we are done. Okay. Parang simple lang ito, di ba?
So, yung potassium magiging K. Plus. So that means it will have a charge of plus 1. Number 25. This is a budol question.
Basahin niyo mabuti. The separation of a substance by diffusion at different rates through differentially permeable membrane. Take note of the word differentially.
Is it dissociation, dialysis, distillation, or diffusion? Again, the separation of substance by diffusion at different rates through differentially permeable membrane. permeable membranes is what?
A, B, C, or D. Anong sagot ninyo? Go. The separation of substance by diffusion.
Meron pang different rates. Ibat-iba yung rates. Tapos meron pang differentially permeable membrane.
Ano ito? Ay, hindi ko na-change. Sorry. 27 na pala. Ah, 27?
25 pa man na. 25, 26. Ah, 27. Sorry, guys. 27. Change ko muna.
Alright. Okay. 27 na ito.
Sorry. Okay. So, anong sagot dito? This is dialysis. Dialysis po ito.
Okay. Dialysis. Kasi...
Sino si dialysis? Diba sa kidney? This is the separation of smaller molecules from larger molecules in solution by selective diffusion. Through a semi-permeable membrane.
And this is a technique also that is often used in biology to isolate certain molecules out of other mixed chemicals. And again, this is the separation of dissolved substances by means of their unequal diffusion. Yan yung differential doon sa question.
Okay? Meron pa. Through a differentially permeable membrane.
Kaya dialysis siya. Balikan natin yung mga other terms that is relevant to this. Osmosis.
Osmosis is a diffusion of water across a differentially permeable membrane in living organisms. Okay. Diffusion.
It is a passive motion caused by gradient of pressure, temperature, or concentration. Direction of movement is from high to low. 28. If sodium atom loses an electron, it becomes what?
Negative, positive, neutral, or none of the above. Go. Mag-change yung numbering.
Sorry. Okay, sagot mo na kayo dyan. Change ko yung numbers. Sumobra pala. 37 pala tayo guys.
Para ma-equal natin. So, we have 36 items. Okay? Sige.
So, number 28. Very good. Lahat ay sumagot ng letter B. And that is the correct answer.
Okay? Obvious na diba? Number 29 tayo. Which compound is commonly used as a catalyst in the Haber process for ammonia synthesis?
Which compound is commonly used as a catalyst in the Haber process for ammonia synthesis? Is it iron, platinum, nickel, or zinc? Go, sagot. Number 14 is sa last number na natin.
Para ma-fill up natin yung lahat ng 36 items. 29, ano ang gagamitin mo na catalyst dito? Sabi ni Ma'am Ars, pumipikit na daw yung mata niya. Ilaban nyo yan, guys. Malapit na tayo matapos.
143 surviving people pa tayo ngayon. Sige, guys, para sa lesensya ito. Para sa lesensya.
Isipin ninyo. Yung kalagayan ninyo pagdating ng September. Para hindi na cramming.
Okay? So, ano yung number 29? Ano ang catalyst dito? You will use what? Ano ang gagamitin?
Sige, hintayin natin yung iba. Okay? Ba't iba yung sagot? Ang sagot dito guys, Do remember kapag Haber process, ang catalyst is ang iron.
Sino si Haber process? Ito is ginagamit natin siya para makamanufacture tayo ng ammonia. Ano yung dalawang components o dalawang ingredients?
We have nitrogen at saka hydrogen. Itong process na ito, yung reaction is actually reversible. Pwede siyang pabaliktad natin, magiging nitrogen at saka hydrogen. And yung production of ammonia is, remember, exothermic po siya.
Number 30. A substance composed of two or more metals fused together is called what? Is it gang, bronze, alloys, or ores? A substance composed of two or more metals fused together. Is it gang, bronze, alloys, or ores?
Go, sagot. Sabog na ba kayo guys? Sige lang, sleep well kayo pagkatapos nito. Sorry talaga, medyo na-late ako ng pasok. But I'll try to be early bukas if makaprepare ako sa school.
Sobrang busy kasi. Yung time lang talaga na makaprepare ako ng PowerPoint is pag-uwi ko talaga. Hindi nga ako kumain kanina. Hindi pa ako nag-dinner.
Kaya kakain pa ako later on. Kasi sinisigurado ko pa yung PowerPoint. Okay, number 30. This is letter C. Aloe. Okay?
Aloe. So what are the different alloys? At saka yung mga components. We have bronze, copper plus tin.
18k na gold, gold, copper, at silver. Brass, we have copper plus zinc. Cast iron, we have iron plus carbon.
Sterling silver, we have silver plus copper. Ano si gang? Si gang, guys, is the unwanted impurities in the ores. Ito yung hindi po ginagamit sa pagmamanufacture. Okay?
Ito yung... parang ang tawag natin dito, yung basura, yung gang. 31. When gaseous molecules are compressed, they have the tendency to what? Repel each other, decrease in volume, attract each other, and liquefy, or let their day increase in volume.
So, gas na naman. Diba? Anong sagot dito?
Go! Walang matutulog. Panoorin lahat.
Refresher series. Dami pang video na di napapanood. Yes, guys.
Panoorin nyo talaga lahat. Promise. Marirewardan talaga kayo ng high rating. O. And huwag nyo kalimutan yung other components ninyo, ha?
Meron pa kayong Profed at saka GenEd. Promise. Health is more important?
For now, it is not. Because I really want to meet your expectation, guys. After the examination, mag-hiatus talaga ako ng one month. Promise. Sige lang, okay lang po ako.
As long as nandyan kayo, I will really do my best to give every ounce of information to all of you. Pag hindi ko kaya, magme-message naman ako sa page. But for now, laban po tayo. Okay?
So number 31, when they are compressed, the gas, yung compression niya is magkakaroon ng decrease in volume. Okay? Decrease in volume. Ito yung pinakita ko sa inyo kanina, diba? Kapag mayroong compression, there will be what?
There will be decrease in volume at saka increase in pressure. Number 32, in the fermentation process, organic compounds are broken down into simple compounds by what? Action of enzymes. salt through the adding of catalyst or heating.
So fermentation process, balikan natin yung fermentation ha. Isipin nyo mabuti kung ano ang mga processes that involves the fermentation. Meron nyo mga branches, di ba?
Ano ang mangyayari? Kapag ano yung nilalagay natin or yung component para makaka-breakdown siya ng compounds into simple compounds. A, B, C, or D.
What's your answer? Okay, very good. Ang galing. So, lahat kayo sumagot ng letter A and yes, that is the correct answer. Diba fermentation process?
Enzymes po yan. Yung mga ginagamit natin ng mga microorganisms. Example is, yung yeast.
Okay, yung yeast. 33. The principal components of foods are fats, carbohydrates, vitamins, water, proteins, and sino yung isa? Acid?
Salt, oxides, or minerals. Okay? All of these are principal components of food.
Sino dito ang isa na nabilong sa kanilang apat? Acids, salt, oxides, or minerals. Go. 33, 34, 35, 36. Four more items to go, guys.
Laban lang. Okay lang yan, Ma'am Christy. May time pa talaga. You have still time.
We are still August 21. Madami pa pong time. Kaya gawin nyo na po akong chipmunk. Yan yung ginawa po in the past batches.
Times 2 yung speed, ha? Dapat times 2 yung speed. At saka mag-take down notes kayo. Very important talaga. Okay?
So, number 33, this is letter D. Minerals. So we have the components of food, ito yung lima.
Carbs, proteins, fats, vitamins and minerals, at saka water. These are actually very essential to our health. At saka yung mga pagpaprocess ng mga bodily functions. 34. Which of the following observations proves that there are spaces between molecules of a material? Sino daw dito ang nakaka-prove na meron dang spaces between molecules sa isang material?
A. Definite volume of solids. B. Conductivity of metals.
C. Compressibility of gases. Or letter D. Ductility of metals. Anong sagot nyo dito?
36 po. Meron ba tayong 5, 6, tatlo? Okay, very good.
Perfect nyo na. Diba? Ibat-iba yung question yung kanina about gases, but same concept siya. Diba? At least, praktisado niya na yung concept ni gas as a matter.
So, this is letter C, compressibility of gases. gases. Because yung mga gases natin, they have a lot of space between each particle, they have no volume and shape, and of course they can be squeezed together.
Compressible po sila. 35. What factor contributes to the solubility of a substance? Is it volume, temperature, molecular motion, or saturation?
Anong factor daw ang nakakontribute sa solubility sa isang substance? Volume, temperature, molecular motion, or saturation? Go. Yes, na-discuss ito kagabi.
Pero, isa lang. Dalawa yung sagot kahapon. Yan yun, isa na lang. Sino dyan?
Solubility ha? Solubility. Basta solubility, we are talking about.
Tinanggal ang pressure. Yes? Very good.
Tinanggal ko ang pressure. Kasi kayo guys, I know na pre-pressure na kayo. That's why you need to use that pressure for you to become diamonds. Kayo, nagre-review kayo, you are still diamonds in the rough. Pagdating sa examination, magiging diamond na kayo.
At yung resulta, of course, yung product sa December, high rater or high rater top natural kayo ng diamond. Kaya ngayon pa lang, utilize that pressure wisely. So number 35, this is temperature. Okay?
So what are the factors affecting solubility? One is nature of solute and solvent. Remember the polar versus polar.
Yung like dissolves like, diba? Temperature, diba? Kapag ini-increase natin yung temperature, mas madi-dissolve siya.
Pressure naman is applicable sa mga gases. The higher the pressure, the more soluble it is. Last two numbers. What characteristic of a mixture differentiates from a compound? So, mixture versus compound.
Ano si mixture dito? A. A new substance is formed, cannot be separated anymore.
There is evidence of a chemical reaction or letter D, combination of two substances in any proportion. Go, sagot. Okay, sino si mixture?
Very good, ang bilis umagot na. Yan ang gusto ko talaga. So, mixture, combination of two substances in any proportion. So, balikan natin yung concept sa difference between compounds at saka mixtures.
Si mixture, from the word mix, they are mixed together. Wala pong reaction na nangyari. Compounds, they have been reacted o merong reaction para makakreate siya ng bagong compound.
Varied yung composition mixture. Same naman yung composition ni compound. Remember the law of conservation of mass.
Kung ano yung nasa reactant, yun pa rin po yung nasa product. So, fixture again, this can be separated by physical methods. Yung physical separation methods natin. Such as yung filtration, distillation, ano pa, so on, so forth. Marami yun.
Na-discuss na natin in the past. Compounds naman cannot be... Is it? cannot easily be separated into its elements.
Number 14. Which of the following does not belong to the group? Acetic acid, sulfuric acid, muriatic acid, or sulfurous acid? Ay, hindi pala. Sorry.
Iba ito. Wait, change ko muna. Iba yung option. Showy!
Iba yung si letter D. Okay. Yun. So number 14. Which of the following does not belong to the group? Acetic acid, sulfuric acid, muriatic acid, or nitric acid?
Anong sagot nyo dito? Go. Iba ito sa kanina. Iba ito guys, iba.
Same ba ito? Wait lang. Change ko kasi kanina. Wait, wait, wait. La.
Wait lang, wait lang. Wait lang guys ha. Saan ba yun?
Change ko ito. Kasi dalawa kasi yung question dito. Iniba lang ni 2. Anong number ba yun? Wait, wait.
Saan ba yun? Ayun. Oo, sige, sige.
Iba ito guys. Iba ito. Acetic acid, sulfuric acid, muriatic acid at saka nitric acid. Ano ito? This is?
Iba ha? This is letter, wait lang. Ang nangyari dito. This is letter A.
This is acetic acid. Magiging acetic acid na siya. Kasi si sulfuric acid, muriatic acid, HCL, at saka nitric acid are what?
These are strong acid. At meron din po tayong other classification po na mga acid. We have mineral acid at saka yung organic acid. The ones that are strong, these are the mineral acid. And organic acids naman are the?
week once. Okay? So, yun. Thank you for listening, guys.
And see you, see you on tomorrow. See you tomorrow, yan. Okay? See you bukas, guys, for set 3. Friday po is we will be having our special set para hindi medyo masakit yung ulo ninyo.
So, congratulations. It's already 12 midnight. So, another certification na zombie na kayo.
So, sleep well, everybody. And laban po tayo bukas for the whole day again. And kita kids, parang magiging hopefully early tayo bukas. Okay, hopefully early tayo bukas. So good night and salamat sa pakikinig.
Bye-bye. Ilan yung scores ninyo? Pakilatag sa ComSec. Thank you.
Latag scores sa ComSec. Okay, after malatag, exit na kayo at matulog. Kaya, taas-taas din yung mga scores ninyo ha. Very good, very good.
Alright. Okay, going good, going good. Remember ha, chemistry pa tayo.
One component pa tayo sa ating new TOS. Okay, okay, okay. Sige, i-out ko na to. Kita-kits tomorrow. Bye-bye everybody.