Respuesta :

snehabhatta32

Answer:

M2(So4)2

Explanation:

Here,

The symbol of metal is M and the symbol of sulphate is So4.

And the,

Valency of metal is 3 and the valency of sulphate is 2..

SO,

M So4

3 2

And when we cross multiply it the formula will be,

M2(So4)2

Hope that it will help u to understand !!