Question

Caco3 decomposes to give cao and co2 if the masses of cao and co2 are 5.6g and 4.4g

Answer 1

According to Law of Conservation of Mass , mass of CaCO3 = 5.6 + 4.4 =10g

Answer 2

The mass of CaCO3 will be 5.6 + 4.4 = 10g