What is the difference in mesomeric and electromeric effect

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If you burn 46.6 g of hydrogen and produce 416 g of water, how much oxygen reacted

#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.