Answer
A conjugate acid-base pair is a pair of substances related to each other by the transfer of a $H^+$ ion. For example: $NH_3$ and $NH{_4}^+$ is a conjugate acid-base pair, because we can donate a proton to $NH_3$, and it becomes $NH{_4}^+$, and vice versa.
Work Step by Step
A conjugate acid-base pair is a pair of substances related to each other by the transfer of a $H^+$ ion. For example: $NH_3$ and $NH{_4}^+$ is a conjugate acid-base pair, because we can donate a proton to $NH_3$, and it becomes $NH{_4}^+$, and vice versa.
