Chapter 4, Problem 41QP

For the complete redox reactions given here, break down each reaction into its half-reactions, identify the oxidizing agent, and identify the reducing agent.

$\begin{array}{l}\text{(a)}\\ {\text{2Sr+O}}_{\text{2}}\underset{}{\to }\text{2SrO}\\ \text{(b)}\\ {\text{2Li+H}}_{\text{2}}\underset{}{\to }\text{2LiH}\\ {\text{(c)2Cs+Br}}_{\text{2}}\underset{}{\to }\text{2CsBr}\\ \text{(d)}\\ {\text{3Mg+N}}_{\text{2}}\underset{}{\to }{\text{Mg}}_{\text{3}}{\text{N}}_{\text{2}}\end{array}$