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nmar nmar
wrote...
Posts: 513
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6 years ago
Hydrogen bonds
  1.occur between non-polar molecules or groups.
  2.are as strong as covalent bonds.
  3.occur between polar molecules or groups.
  4.never occur in water.

Question 2

Which element is not one of the four elements that make up 96 of living organisms?
  1.Carbon
  2.Nitrogen
  3.Oxygen
  4.Iron
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Replies
wrote...
6 years ago
Answer to q. 1

3

Answer to q. 2

4
nmar Author
wrote...
6 years ago
Cheers!!
wrote...
6 years ago
Cheers too Thumbs Up Sign
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