An acid-base reaction always
contains two conjugate acid-base pairs.
Interact with the following animation
illustrating how acid-base reactions always contains two conjugate acid-base
pairs.
Two important
points can be drawn from the above animation:
An
acid in aqueous solutions always produces a species capable of acting as
a base. Similarly, a base in solution always produces a substance capable
of acting as an acid.
An
acid-base equation contains an acid and base for the forward reaction and
an acid and base for the reverse reaction.