Balance each of thefollowing half-reactions, assuming that they occur in basicsolution.

You may want toreference (Pages 757 - 761) Section 18.1 while completing thisproblem.

Part A

O2(g)?OH?(aq)

Express your answer as a chemical equation includingphases.

Part B

H2O(l)?H2(g)

Express your answer as a chemical equation including phases.

Part C

Cr3+(aq)?Cr2+(aq)

Express your answer as a chemical equation including phases.

Part D

BiO+(aq)?Bi(s)

Express your answer as a chemical equation including phases.