Question

Using the concept of valency, derive the formulae of the following compounds
1 aluminum oxide 2 calcium phosphate

Answer 1

Answer:

1. Al2O3 2, Ca3(PO4)2

Explanation:

1. Valency of Al = 3

Valency of O =2

so , Al2O3

2. Valency of Ca = 2

Valency of PO4 = 3

so,Ca3(PO4)2