Chemical Reactions

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Across
  1. 2. a material that increases the rate of a reaction
  2. 3. a reaction that gives off heat or energy
  3. 5. reaction where substances join together
  4. 7. two compounds break apart and trade elements
  5. 8. an element and compound split and rejoin
  6. 10. minimum amount of energy to start a chemical reaction
  7. 11. reaction where substances break apart
  8. 14. chemical reaction between acids and bases
  9. 15. a reaction that takes in heat or energy
  10. 16. the substances that go into a chemical reaction
Down
  1. 1. a number in front of a chemical compound that indicates how many molecules of the compound there are
  2. 4. value that is used to express acidity or basicity of a compound
  3. 6. energy cannot be created or destroyed
  4. 9. the substances that are at the end of a chemical reaction
  5. 12. a solid that forms from a solution during a chemical reaction
  6. 13. a material that decreases the rate of a reaction