Chemical Reactions

4. A chemical reaction that absorbs energy
9. Combustion that occurs when there is plenty of oxygen. It produces carbon dioxide and water vapour
10. A way of protecting aluminium from corrosion, by deliberately creating a layer of aluminium oxide over it
12. Rain that has acids such as nitric acid and sulfuric acid dissolved into it
13. A green coating of copper hydroxide that is produced when copper reacts with moisture, carbon dioxide and oxygen in the atmosphere; chemical formula Cu(OH)
14. A rapid reaction with oxygen that releases energy in the for of heat and/or light
15. The term commonly used for sodium chloride, but covers any compound formed by a metal taking place of the hydrogen atom in acid

1. The breakdown of metals due to their reaction with other chemicals
2. Chemicals produced in a chemical reaction. They are written on the right hand side of the arrow
3. Endothermic reaction that takes place in green plants. Uses energy from sunlight to combine water and carbon dioxide and produce glucose and oxygen gas
5. Highly Combustible chemicals; petrol is a mix of me
6. A tern used ti describe materials that store carbon in their structures. Plants and animals can be thought of as carbon sinks
7. A chemical reaction that releases energy
8. Hydrated iron oxide, Fe2O3.H2O
11. Chemicals that take part in a chemical reaction. They are written of the left hand side of the arrow