Chemistry

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Across
  1. 2. sugar alcohol, five OH groups
  2. 4. C3H5(OH3)
  3. 6. C2H6
  4. 7. HCOOH
  5. 8. CH3OH
  6. 10. CH4
  7. 12. C3H8
Down
  1. 1. C2H4(OH)2
  2. 3. CH3COOH
  3. 5. C2H2OH
  4. 9. 2 carbons, triple bond
  5. 11. 2 carbons, double bond