Across
- 5. A change that absorbs energy causing the temperature of the surroundings to decrease.
- 7. A substance that increases the rate of a reaction without being used up.
- 8. The change of state from gas to solid.
- 9. A chemical that changes colour in an acid or base.
- 10. blah blah.
Down
- 1. An insoluble solid formed when two solutions mix.
- 2. A solution in which a large amount of the solute is dissolved in a solvent.
- 3. The substances formed by a chemical reaction.
- 4. A base that is soluble in water.
- 6. A chemical that causes solids to be "eaten away".