Question

When 10 g of CaCO3 is decomposed, 5.6 g of
residue is left and 4.4 g of CO2 escapes.
Which law is being followed in this case?
Law of conservation of mass
Law of chemical combination
Law of definite proportion
Law of multiple proportion​

Answer 1

Answer:

When 10 g of CaCO3 is decomposed, 5.6 g of residue is left and 4.4 g of CO2. escapes.

Answer 2

Answer:

a) Law of conservation of mass

is the right answer.