Chemistry - Reactions

2. A factor that can change.
5. A substance that is changed during a reaction.
9. A reaction in which an insoluble product is formed from soluble reactants.
11. A reaction where a more reactive element takes the place of a less reactive element in a compound.
12. A reaction in which an acid reacts with a base to produce a salt and water only.
14. An enzyme in which the shape of the active site has changed so much that its substrate no longer fits and the reaction can no longer happen.
15. A protein produced by living organisms that acts as a catalyst to increase the rate of a reaction.

1. A measure of how much solute is dissolved in a solvent such as water.
3. A reaction in which energy is transferred from the reactants to the surroundings. The temperature of the surroundings increases.
4. A substance that increases the rate of a reaction without itself being used up.
6. The new substances made in a chemical reaction. These are written on the right side, after the arrow, in a word equation.
7. The substances that take part in a chemical reaction. These are written on the left side, before the arrow, in a word equation.
8. A reaction in which energy is transferred to the reactants from the surroundings. The temperature of the surroundings decreases.
10. How quickly something happens.
13. Chemical change that forms a new substance