Chemistry Lecture Notes

What is Chemistry?

• Chemistry is the science of matter.
• Broad Topic Coverage: From the Earth's core to the universe.
• Definition: The study of matter, including its composition, properties, structure, changes, and energy interactions.

Importance of Chemistry

• Understanding the Natural World: Many 'why' and 'how' questions are related to chemistry.
  • Example: Why is the sky blue? Colors depend on the chemical makeup of substances and the type of light they reflect.
  • Example: How do insects walk on water? Water's unique properties and high surface tension allow small objects to rest on it without sinking.

Main Branches of Chemistry

1. Organic Chemistry
2. Inorganic Chemistry
3. Analytical Chemistry
4. Physical Chemistry
5. Biochemistry

• Further details on these branches will be covered in future lectures.