Everyday Reactions

4. Ice melting is a ____________ reaction.
5. A type of reduction reaction using heat.
10. The addition of oxygen to a compound is called an ___________ reaction.
11. A piece of equipment used to heat a substance.
13. Hydrogen and carbon dioxide are both ________.
14. All metals react with oxygen, and this is called _________.
18. A type of reaction where heat is give out.
19. The name of the element Fe.
20. The name of the element Mg.
21. A compound that contains hydrogen and oxygen.
22. When everything in a reaction has reacted, you are left with the ____________.
23. The most important element in air is __________.

1. The way in which iron is extracted from iron ore.
2. In a chemical reaction the substances you start with are called ____________.
3. Burning paper is a ___________ reaction.
6. A type of reaction where heat is absorbed.
7. A type of reaction in the body that changes food (fuel) into energy, water and carbon dioxide.
8. The chemical formula for carbon dioxide.
9. The chemical formula for water
12. The removal of oxygen from a compound is called a __________ reaction.
15. Oxygen and water are required for this reaction and salt speeds it up.
16. Oxygen, heat source and fuel are required for this reaction.
17. These are found in the periodic table.