Mr. Sir

8. The number of active molecules in a set volume of solution
9. an insoluble compound formed in a precipitation reaction
10. a long-chain molecule formed by the joining of many smaller repeating molecules (monomers)
11. a reaction that involved oxygen and releases light and heat energy
12. a mixaure of a solute dissolved in a solvent such as water
14. a reaction in which an acid and a base combine to produce a metal, salt, and water
15. A small number of active molecules (such as acid) in a solution

1. A strong acid readily releases a hydrogen ion in a chemical reaction
2. A molecule that contains only carbon and hydrogen atoms
3. an object or substance that can be broken down by bacteria, fungi, and other living organisms
4. a small molecule from which polymers are made
5. a reaction that involves the breakdown of a compund into simpler substances
6. process of joining of smaller units to form a long chain molecule
7. A reaction that involves the building up of compounds by combining simpler substance, normally elements
13. a substance that increases the rate of a reaction but is not is not used up in the reaction