Chapter 16, Problem 3QP

Classify each of the following species as a Brønsted acid or base, or both: (a) ${\text{H}}_2\text{O,}$ (b) ${\text{OH}}^{-}\text{,}$ (c) ${\text{H}}_3{\text{O}}^{+}\text{,}$ (d) ${\text{NH}}_3\text{,}$ (e) ${\text{NH}}_4{}^{+}\text{,}$ (f) ${\text{NH}}_2{}^{-}\text{,}$ (g) ${\text{NO}}_3{}^{-}\text{,}$ (h) $\text{CO}\frac{2-}{3},$ (i) $\text{HBr,}$ (j) $\text{HCN}\text{.}$