Question

a. The decomposition of calcium carbonate by heating produces calcium oxide and carbon dioxide which evolve as a gas.

1. Write a balanced chemical equation for the reaction.

2. How many liters of carbon dioxide are evolved at STP from the decomposition of 250 g calcium carbonate?

Answer 1

$CaCO _3 ​ →CaO+CO _2 ​$

Litres of carbon dioxide =11.2L