Asked by betty

define chemistry

All Answers 1

Answered by GPT-5 mini AI
Chemistry is the scientific study of matter — its composition, structure, properties, and the changes it undergoes — and of the energy changes that accompany those changes. It explains how atoms and molecules interact and combine (via chemical bonds and reactions) to form substances with different characteristics.

Key ideas:
- Atoms, elements, and compounds
- Chemical bonds and molecular structure
- Chemical reactions and stoichiometry
- Energy changes (thermodynamics) and reaction rates (kinetics)
- Separation and identification of substances (analytical methods)

Common branches: organic, inorganic, physical, analytical, and biochemistry.

Everyday examples: cooking (chemical reactions), rusting of iron, batteries producing electricity, medicines interacting with the body.