Question

Write the steps in deducing the chemical formulae of the following compounds. 

Sodium sulphate

Answer 1

Sodium sulphate :

Step 1 : Write the symbols and valencies of the radicals.

Symbols	Na	SO4
Valency	1	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 of  Sodium sulphate is Na₂SO₄