Chemical Reactions Crossword

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Across
  1. 5. A chemical reaction in which one element replaces another in a compound or when two elements in different compounds trade places
  2. 7. A change/reaction that releases energy, usually in the form of heat
  3. 8. A change that alters the form or appearance of a material but does not make the material into another substance
  4. 9. A change/reaction that absorbs energy
  5. 11. A chemical reaction that breaks down compounds into simpler products
Down
  1. 1. A number in a chemical formula that tells the number of atoms in a molecule or the ratio of elements in a compound
  2. 2. A chemical reaction in which two or more simple substances combine to form a new, more complex substance
  3. 3. A change in which one or more substances combine or break apart to form new substances
  4. 4. A solid that forms from a solution during a chemical reaction
  5. 6. A substance that enters into a chemical reaction
  6. 10. The Law of Conservation of ____, states that the total amount of matter is neither created nor destroyed during any chemical or physical change
  7. 12. A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a a reaction
  8. 13. A substance formed as a result of a chemical reaction