Balancing chemical equations

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Across
  1. 1. after chemical reaction
  2. 4. before the chemical reaction
  3. 5. mass cant be created nor desrtoyed
  4. 9. when charges are equal
  5. 10. a matiral substance
Down
  1. 2. numder before element/compound
  2. 3. telling a chemical reaction accured
  3. 6. number after element/compound
  4. 7. tells what the charge is
  5. 8. when charges are not equal