Everyday Reactions

1. A compound that contains hydrogen and oxygen.
3. A piece of equipment used to heat a substance.
4. Burning paper is a ___________ reaction.
8. Hydrogen and carbon dioxide are both ________.
10. Oxygen, heat source and fuel are required for this reaction.
11. A type of reaction where heat is absorbed.
12. A type of reaction in the body that changes food (fuel) into energy, water and carbon dioxide.
16. A type of reaction where heat is give out.
18. The addition of oxygen to a compound is called an ___________ reaction.
20. The name of the element Fe.
21. The chemical formula for water
22. Ice melting is a ____________ reaction.

2. A type of reduction reaction using heat.
5. In a chemical reaction the substances you start with are called ____________.
6. Oxygen and water are required for this reaction and salt speeds it up.
7. The name of the element Mg.
9. When everything in a reaction has reacted, you are left with the ____________.
13. The way in which iron is extracted from iron ore.
14. All metals react with oxygen, and this is called _________.
15. These are found in the periodic table.
17. The removal of oxygen from a compound is called a __________ reaction.
18. The most important element in air is __________.
19. The chemical formula for carbon dioxide.