Chemistry sklls

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Across
  1. 4. HNO3
  2. 7. LiNO3
  3. 8. C2H4
  4. 10. CaCO3
  5. 11. Mg(OH2
Down
  1. 1. CoCl2
  2. 2. H2SO4
  3. 3. CuSO4
  4. 5. NaOH
  5. 6. CH3COOH
  6. 9. CO