Chapter 14.2, Problem 14.13QAP

Identify the Bronsted-Lowry acid-base pairs in each of the following equations:
a. ${\text{H}}_{\text{2}}{\text{CO}}_{\text{3}}\left(\text{aq}\right)+{\text{H}}_{\text{2}}\text{O}\left(\text{1}\right) \rightleftharpoons {\text{HCO}}_{\text{3}}{}^{-}\left(\text{aq}\right)+{\text{H}}_{\text{3}}{\text{O}}^{\text{+}}\left(\text{aq}\right)$
b. ${\text{NH}}_{\text{4}}{}^{+}\left(\text{aq}\right)+{\text{H}}_{\text{2}}\text{O}\left(\text{l}\right)\rightleftharpoons {\text{NH}}_{\text{3}}\left(\text{aq}\right)+{\text{H}}_{\text{3}}{\text{O}}^{\text{+}}\left(\text{aq}\right)$
c. $\text{HCN}\left(\text{aq}\right)+{\text{NO}}_{\text{2}}{}^{-}\left(\text{aq}\right)\rightleftharpoons {\text{CN}}^{-}\left(\text{aq}\right)+{\text{HNO}}_{\text{2}}\left(\text{aq}\right)$
d. ${\text{CHO}}_{\text{2}}{}^{-}\left(\text{aq}\right)+\text{HF}\left(\text{aq}\right)\rightleftharpoons {\text{HCHO}}_{\text{2}}\left(\text{aq}\right)+{\text{F}}^{-}\left(\text{aq}\right)$