Question

what happens in Mg(OH)2 is dissolved in water write reaction​

Answer 1

Answer:

When Mg(OH)2 is dissolved in H2O (water) it will dissociate (dissolve) into Mg +2 and OH- ions. To show that they are dissolved in water we can write (aq) after each.

Answer 2

Answer:Magnesium hydroxide is an ionic compound. It consists of Mg²⁺ ions and OH⁻ ions. Its formula is Mg(OH)₂.

When Mg(OH)₂ dissolves in water, the ions separate or dissociate from each other and go into solution.

But Mg(OH)₂ is not very soluble in water. An equilibrium is soon reached in which Mg²⁺ ions and OH⁻ ions leave the surface of the solid as fast as they return.

The dissociation is an equilibrium reaction. The equation is:

Mg(OH)₂(s) ⇌ Mg²⁺(aq) + 2OH⁻(aq)