1
The process of changing from one thing to another.
2
The name of the chemical reaction which happens without oxygen.
3
When a substance such as fuel reacts with oxygen to produce light and heat.
4
The name given to the substances which are involved in chemical reactions.
5
A substance needed for some chemical reactions, such as oxidation and combustion.
6
The reactant used in bread-making.
7
A product of combustion.
8
New substance created by oxidation.
9
Needed for combustion.
