Question

Calcium carbonate decomposes , on heating , to form calcium oxide and carbon

dioxide. When 10g of calcium carbonate is decomposed completely , then 5.6 g calcium

oxide is formed. Calculate the mass of carbon dioxide formed. Which law of chemical

combination will you use in solving this problem? please someone say me ​

Answer 1

Answer:

According to the law of conversation of mass,

Total mass of reactant=total mass of products

=5.6+4.4

=10g

Mass of CaCO

3

=10g

Answer 2

Answer:

the required mass of carbon dioxide is 5.4 g

We use the law of conservation of mass to solve it