Chemistry Review - Unit 4

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Across
  1. 1. increasing this makes particles collide harder and react faster
  2. 4. a reaction that always contains oxygen, carbon dioxide, and water
  3. 6. a substance that lowers activation energy
  4. 8. a reaction with only one product
  5. 10. a reaction that releases energy
  6. 12. making particles of reactants smaller will _____ surface are
  7. 15. a reaction with only one reactant
  8. 17. the replacement reaction with two compounds on each side
  9. 18. a reaction that absorbs energy
Down
  1. 2. the substance that you start with in a chemical reaction
  2. 3. measure how many particles are in a solution
  3. 5. balanced equations follow the law of conservation of ____.
  4. 7. an equation with the same number of atoms, of each element, on both sides
  5. 9. the amount of energy particles have to have in order to react
  6. 11. the substances that you end with in a chemical reaction
  7. 13. the numbers that you use to balance an equation
  8. 14. the replacement reaction with one element and one compound on both sides
  9. 16. the theory that tells us what reactants have to do to react