Chapter 3 Glossary

2. A simple sugar formed by photosynthesis and used in respiration
4. rain Rain that has acids such as nitric acid and sulphuric acid dissolved in it
5. A green coating of cooper hydroxide that is produced when copper
7. A rapid reaction with oxygen that releases energy in the form of heat and/or light
8. A chemical reaction that absorbs energy
10. A reaction that uses oxygen to release energy stored in glucose
12. Simple written description of what is happening in a reaction
15. Highly combustible chemicals, petrol is a mixture of hydrocarbons
16. hydrated iron oxide
17. A process in which chemicals move, caused by different concentrations of the chemical
18. A biological catalysts that speeds up a reaction

1. sink A term used to describe materials that store carbon in their structures. Plants and animals can be thought of as carbon sinks
3. The breakdown of metals due to their reaction with other chemicals
6. A chemical reaction in which glucose is broken down, releasing energy for use by the plant or animal
9. A reaction of an acid with a base, forming a salt and water
11. Chemicals produced in a chemical reaction. They are written on the right-hand side of the arrow
13. A chemical reaction that rereleases energy
14. A way of protecting aluminium from corrosion, by deliberately creating a layer of aluminium oxide over it