chemical reactions :|

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Across
  1. 4. written on the left side of a chemical equation
  2. 5. a chemical change, can take the form of fizzing
  3. 6. solid material coming from liquid substance
  4. 7. the most basic unit of matter
  5. 8. a reaction where energy is being released
  6. 9. written on the right side of a chemical equation
Down
  1. 1. a substance that's made up of atoms + can't be broken down into simpler substances during a normal chemical reaction
  2. 2. a reaction where energy is being absorbed
  3. 3. when chemicals combine to form new ones