Chemical Reactions

A process where a substance changes into different substances.

The substances that start a chemical reaction.

• reactants

• products

These react.

Substances that are produced in a reaction.

• reactants

• products

These are produced.

Reactants and products can be these.

• elements

• atoms

• compounds

• mixtures

Any substance that cannot be broken down into simpler substances by ordinary chemical processes.

The fundamental materials of which all matter is composed.

These consists of two or more elements joined together.

Chemical reactions are represented by these.