Chapter 13, Problem 72TE

Identify the acid or base behavior of each substance in these reactions:

(a) $\underset{\_}{{\text{H}}_{\text{3}}{\text{O}}^{+}}+\underset{\_}{{\text{Cl}}^{-}}\rightleftarrows \underset{\_}{{\text{H}}_{\text{2}}\text{O}}+\underset{\_}{\text{HCl}}$

(b) $\underset{\_}{{\text{H}}_{\text{2}}{\text{PO}}_4^{-}}+\underset{\_}{{\text{H}}_{\text{2}}\text{O}}\rightleftarrows \underset{\_}{{\text{H}}_{\text{3}}{\text{O}}^{+}}+\underset{\_}{{\text{HPO}}_4^{2-}}$

(c) $\underset{\_}{{\text{HSO}}_4^{-}}+\underset{\_}{{\text{H}}_{\text{2}}\text{O}}\rightleftarrows \underset{\_}{{\text{OH}}^{-}}+\underset{\_}{{\text{H}}_{\text{2}}{\text{SO}}_4}$

(d) $\underset{\_}{{\text{O}}^{2-}}+\underset{\_}{{\text{H}}_{\text{2}}\text{O}}\rightleftarrows \underset{\_}{{\text{OH}}^{-}}+\underset{\_}{{\text{OH}}^{-}}$