Chapter 5, Problem 81QP

Write a balanced equation to describe any acid-base neutralization reaction that might occur when the following substances are mixed.

$\begin{array}{l}\left(\text{a}\right){\text{ H}}_{\text{2}}\text{S}\left(aq\right)\text{ and Cu}{\left(\text{OH}\right)}_{\text{2}}\left(s\right)\hfill \\ \left(\text{b}\right){\text{ CH}}_{\text{4}}\left(g\right)\text{ and NaOH}\left(aq\right)\hfill \\ \left(\text{c}\right){\text{ KHSO}}_{\text{4}}\left(aq\right)\text{ and KOH}\left(aq\right)\hfill \end{array}$