Does a reaction occur when aqueous solutions of potassium hydroxide and chromium(III) bromide are combined

#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.

Use the half-reactions of the reaction au(oh)3 + hi -> au +i2 +h2o to answer the questions

Select the statement that describe chemical properties a. antacid tablets neutralize stomach acid b. helium is the lightest monatomic element c. water freezes at 0 celsius d. mercury is liquid at room temperature