Question 1
Which of these statements is true about ionic compounds like sodium chloride (NaCl)?
Question 2
Which structural form of carbon is used as a lubricant due to its layered structure?
Question 3
What occurs when a liquid changes to a solid?
Question 4
Which gas is predominantly responsible for the greenhouse effect?
Question 5
What type of ions are formed by metals losing electrons?
Question 6
Which state of matter has particles in fixed arrangements and low kinetic energy?
Question 7
What is formed when ammonia diffuses together with hydrochloric acid in a glass tube?
Question 8
What is the smallest particle of an element that can exist?
Question 9
In the periodic table, what does the group number indicate?
Question 10
Which microscopic structure has high melting/boiling points and can conduct electricity when molten or dissolved in water?
Question 11
What type of bond is formed in water (H₂O) through shared pairs of electrons?
Question 12
How can one identify halide ions using chemical tests?
Question 13
Which type of chemical structure is characterized by low melting points and low energy to break intermolecular forces?
Question 14
What pH level characterizes a base?
Question 15
What is required to balance chemical equations?
Question 16
What is the simplest whole-number ratio of atoms in a compound called?
Question 17
In the process of diffusion, particles move from an area of _______ concentration to an area of _______ concentration.