(NH4)2SO4(aq) + Mg(OH)2 (aq) →

Express your answer as a chemical equation. Identify all of the phases in your answer.

2NH4+ (aq) + SO4^2- (aq) + Mg^2+ (aq) + 2OH- (aq) → 2NH4+ (aq) + SO4^2- (aq) + Mg(OH)2 (s)