As a bond is broken in a compound the potential energy of the atoms generally does what

Areaction is first order with respect to reactant x and second order with respect to reactant y. which statement describes the rate law for this reaction?

State one important difference between a physical change and a chemical change?

#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.