Question

the formula of metal chloride is mcl2. what is the formula of its oxide

Answer 1

Answer:

Explanation:

The given compound is MCl2 which is the chloride of a metal. Thus, the valency of the metal is 2 since the valency of chloride ion is -1 as could be demonstrated by the cross valency method. We know phosphate radical is PO4 with a valency of -3. When this metal M reacts with Phosphate radical, their valencies are crossed with each other and the resulting compound becomes M3(PO4)2.