Question

M is a bivalent metal. Write down the steps to find the chemical formulae of its compounds formed with the radicals, sulphate and phosphate.

Answer 1

M is a bivalent metal that is : M²⁺

Step 1 : Write the symbols and valencies of of M and sulphate.

Symbols	M	SO4
Valency	2	2

 

Step 2 : Cross-multiply symbols of radicals with their respective valency.

Step 3 : Write down the chemical formula of the compound.

The chemical formula is  MSO₄

M is a bivalent metal that is : M²⁺

Step 1 : Write the symbols and valencies of of M and Phosphate.

Symbols	M	PO4
Valency	2	3

Step 2 : Cross-multiply symbols of radicals with their respective valency.

Step 3 : Write down the chemical formula of the compound.

The chemical formula is  M₃(PO4)₂