Chemical Equations

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Across
  1. 5. a body of matter
  2. 6. the basic unit of a chemical element
  3. 7. before chemical reaction
  4. 8. equal sign in chemical equations
  5. 9. atoms can never be
  6. 10. after chemical reaction
Down
  1. 1. abbreviation for Law of Conservation of Mass
  2. 2. atoms can never be
  3. 3. different on either side
  4. 4. equal on both sides