Which of the Following Chemical Equations Best Represents the Dissolution

Multiple Choice

Which of the following chemical equations best represents the dissolution of a soluble group 2A metal hydroxide in water?

A) M(OH) ₂(s) → M⁺(aq) + (OH) ₂^-(aq)
B) M(OH) ₂(s) → M²⁺(aq) + 2OH^-(aq)
C) M(OH) ₂(s) + H₂O(l) → MO(aq) + OH^-(aq) + H₃O⁺(aq)
D) M(OH) ₂(s) → M(OH) ₂(aq)
E) M(OH) ₂(s) → MO(aq) + H₂O(l)