Apositive ion may be formed when a
a. non-metal atoms gains enough electrons to complete its outer shell
b. metal atoms gains enough electrons to complete its outer shell
c. metal atom loses it's outer shell

Which of the following best supports the concept that genetic information is passed on to offspring from both of their parents, not just one?

#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.

Why is it incorrect to balance a chemical equation by changing the subscripts? explain.