Organic chemistry

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Across
  1. 2. is periodic square
  2. 4. is single sugar
  3. 6. corbons are alkane
  4. 7. of gang
  5. 9. is group of saturated
Down
  1. 1. rings six membered
  2. 3. is simplest type
  3. 5. can you eat
  4. 8. amino acids put together large