Question

what happened to an acid or a base in a water solution?

Answer 1

When an acid or a base is dissolved in water, they get dissociated into ions.

Answer 2

when an acid is added to a water solution the acid dissociates to produce hydrogen ions as the only positively charged ion . the hydrogen ion formed from the acid accepts the lone pair of electrons present in the water molecule thus forming hydronium ions

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when a base is added to a water solution the acid dissociates to produce hydroxyl ions as the only negatively charged ion