Write a balanced chemical equation for dissolving sodium bromide in water.

Sodium bromide, like all ionic salt in water, dissociates.

NaBr (s) → H2O → Na⁺ (aq) + Br⁻ (aq)

Explanation:

Sodium bromide, like all ionic salt in water, dissociates but what does it happen with ions bromide and sodium?

Na⁺ (aq) + H2O (l) ← H⁺ (aq) + NaOH

Sodium ion comes from sodium hidroxide, which is a strong base so the ion is the weak conjugated acid. In water, it doesn't make reaction, that's why the arrow is in this direction ←.

The same situation is for the bromide. It comes from the bromhydric acid, an strong one, so the ion is the weak conjugate base.

Br⁻ (aq) + H2O (l) ← HBr (aq) + OH⁻ (aq)