Chemical Reactions

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Across
  1. 3. a chemical reaction in which heat is released to the surroundings
  2. 7. The Law that states that energy cannot be created or destroyed but can change form
  3. 8. a representation of a chemical reaction that uses symbols to show the relationship between the reactants and products
  4. 9. a reaction in which two or more substances combine to form a new compound
  5. 10. the substance that forms in a chemical reaction
  6. 11. a substance that participates in the chemical reaction
  7. 13. a substance that slows down a chemical reaction
  8. 14. The minimum amount of energy required to start a chemical reaction
  9. 15. a reaction in which a gas, a solid precipitate, or a molecular compound forms from the apparent exchange of atoms or ions between two compounds
Down
  1. 1. a reaction in which a single compound breaks down to form two or more simpler substances
  2. 2. A chemical reaction that requires heat
  3. 4. an oxidation reaction of an organic compound, in which heat is released
  4. 5. The process by which one or more substances change to produce one or more different substances
  5. 6. A combination of chemical symbols and numbers to represent a substance
  6. 12. a substance that changes the rate of a chemical reaction without being used up or changed very much