Chemical reactions

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Across
  1. 5. Script used to denote the number of atoms in a compound
  2. 7. a chemical reaction that energy is released
  3. 9. A reaction that involves to breaking down of a compound to simpler substances
  4. 11. a substance that speeds up a reaction
  5. 13. the amount of solute dissolved in a given amount of solvent
  6. 14. Law of _____________ of Energy states that energy can neither be created nor destroyed
  7. 15. a chemical reaction in which energy is absorbed
  8. 16. substances formed in a chemical reaction
Down
  1. 1. an increase in it will speed up the particles thus increasing the rate of reaction
  2. 2. The Law of Conservation of _______, says that Mass can neither be created nor destroyed
  3. 3. a reaction in which a hydrocarbon is burned
  4. 4. A reaction in which elements combine to form a compound
  5. 6. Used in a chemical equation to denote the number of molecules
  6. 8. a substance that slows down the speed of a reaction
  7. 10. Starting material in a chemical reaction
  8. 12. The amount of energy needed to get a reaction started