Question

the ratio of masses of calcium and oxygen and carbon and oxygen formed by the decomposition of calcium carbonate will be​

Answer 1

Answer:

1:3

ratio os 1:3

Answer 2

꧁༆ 11.2 L ༆꧂

Chemical reaction involved is:

CaCO3→CaO+CO2

Molar mass of CaCO3=40+12+16×3=100 g

According to the balanced reaction 100 g of CaCO3 produces 1 mol of CO2 i.e. 22.4 L at STP.

∴50 g CaCO3 will produce 10022.4×50=11.2 L CO2 at STP.