Choose the two alkyl bromides and the hydrogenation method that must be used to synthesize these alkenes from acetylene. Enter your answer as two letters in alphabetical order, followed by a number; i. e. ac2, not ca2. Do not use punctuation.

#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.