How many sigma and pi bonds are in the following molecule? * HH
H
-C=C-
H
O 5 sigma and 2 pi
5 sigma and 5 pl
7 sigma and 2 pi
7 sigma and 3 pl

#7 how does the structure of amino acids allow them to form a polypeptide? each amino acid has an amino group and a carboxyl group. each amino acid has a hydrogen atom and a carboxyl group. each amino acid has a carboxyl group and an r group. each amino acid has an r group and a hydrogen atom.