CGillen Ch. 13

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Across
  1. 4. Fourth of the 5 clues that a chemical reaction occurred.
  2. 5. First of the 5 clues that a chemical reaction occurred.
  3. 7. Third of the 5 clues that a chemical reaction occurred.
Down
  1. 1. Fifth of the 5 clues that a chemical reaction occurred. HINT:(3 words and TO is the second)
  2. 2. Increases speed of reaction by lowering the minimum amount of energy required to activate the reaction.
  3. 3. A substance produced in a chemical reaction.
  4. 6. Second of the 5 clues that a chemical reaction occurred. HINT:(OR starts after the first 4 letters)