Question

a) Write the chemial formula of aluminum oxide and carbondioxide
b) What is the valency of calcium in calcium chlonde (CaCl)?

Help Me​

Answer 1

Answer:

a) chemical formula of aluminium oxide is Al2O3

and chemical formula of corbondioxide is CO2

b) valency of calcium is +2

Answer 2

Aluminium Oxide:- Al2O3

Carbon dioxide:- CO2

Explanation:

Calcium Chloride:- CaCl2