Balancing chemical equations

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Across
  1. 3. quantitative measure of inertia
  2. 4. table contains groups in numbers 1-18
  3. 7. things on periodic table
  4. 8. end result
  5. 9. element with atomic number 8
  6. 10. two mathematical expressions
Down
  1. 1. interaction of substances
  2. 2. points from blank to blank
  3. 5. chemicals that mix together
  4. 6. element with atomic number 6