Balance each of the following redox reactions occurring inacidic aqueous solution.

Part A

Zn(s)+Sn2+(aq)?Zn2+(aq)+Sn(s) Express your answer as a chemicalequation. Identify all of the phases in your answer.

Part B

Mg(s)+Cr3+(aq)?Mg2+(aq)+Cr(s) Express your answer as a chemicalequation. Identify all of the phases in your answer.

Part C

MnO4?(aq)+Al(s)?Mn2+(aq)+Al3+(aq) Express your answer as achemical equation. Identify all of the phases in your answer.