Across
- 3. reaction that takes in energy in the form of heat
- 5. chemical reaction in which a single compound breaks down into two or more elements or compounds
- 8. substances that participate in a chemical reaction
- 11. reaction that gives out energy in the form of heat
- 13. energy minimum amount of energy needed for a reaction to take place
- 14. substance formed as a result of a chemical reaction
Down
- 1. factor affecting the rate of reactions
- 2. reaction between an acid and base forming water and salts
- 4. reaction in which one element replaces another within a compound
- 6. gain of oxygen by a substance during a chemical reaction
- 7. solid that forms from a solution during a chemical reaction
- 9. substance which slows dow or stops a chemical reaction
- 10. substance that speeds up a reaction without being consumed
- 12. chemical link that holds molecules together