Across
- 3. Reaction that gives out energy in the form of heat
- 5. Substance that speeds up a reaction without being consumed
- 8. Reaction between an acid and base forming water and salts
- 9. Reaction in which one element replaces another within a compound
- 10. Chemical link that holds molecules together
- 11. Reaction that takes in energy in the form of heat
- 12. Gain of oxygen by a substance during a chemical reaction
Down
- 1. Energy is the energy needed to start a reaction
- 2. Factor affecting the rate of reactions
- 4. Substance that participates in a chemical reaction
- 6. Chemical reaction in which a single compound breaks down into two or more elements or compounds
- 7. Solid that forms a solution during a chemical reaction