The other product formed when carbonic acid (H₂CO₃) reacts with calcium hydroxide (Ca(OH)₂) is water (H₂O).

Here's the balanced chemical equation for the reaction:

H₂CO₃ (aq) + Ca(OH)₂ (aq) → CaCO₃ (s) + 2 H₂O (l)

The salt formed is calcium carbonate (CaCO₃), which is insoluble in water and precipitates out of the solution.