Which two events are independent? a and x a and y b and x b and y

The continuous release of nuclear energy caused when one fission reaction triggered more nuclear reactions is a

What is a property of a double replacement reaction

#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.