What had to change and be removed from the milk mixture to change it from a liquid to a solid?

How is the atomic number of a nucleus changed by alpha decay

Which of the following are correct values for the ideal gas laws constant r

#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.