Write the equilibrium expression for the complex ion formed…

Write the equilibrium expression for the complex ion formed by the reaction of silver ion and ammonia according to this reaction; Ag+ + 2NH3⇌AgNH32+{“version”:”1.1″,”math”:”Ag+ + 2NH3⇌AgNH32+”}  If Kf= 1.7 x 107{“version”:”1.1″,”math”:”Kf= 1.7 x 107″}, what is true about the amount of complex ion that will dissociate ?

What is the effect on the amount of solid Mg(OH)2{“version”:…

What is the effect on the amount of solid Mg(OH)2{“version”:”1.1″,”math”:”Mg(OH)2″} and the concentrations of Mg2+ and OH-{“version”:”1.1″,”math”:”Mg2+ and OH-“}when MgCl2{“version”:”1.1″,”math”:”Cl2″} is added to a saturated solution of Mg(OH)2 {“version”:”1.1″,”math”:”Mg(OH)2 ”}?