SmallPepsiCan7111 SmallPepsiCan7111 Today at 10:49 PM Chemistry Answered Magnesium hydroxide is only very slightly soluble in water. The reaction by which it goes into solution is: Mg(OH) 2 (s) rightleftharpoons Mg^ 2+ (aq)+2OH^ minus (a q) What will happen if O H minus is added to the solution and why?