Question

metal compound A reacts with dilute hydrochloric acid to produce effervescence the gas evolved extinguishes The Burning candle write a balanced chemical equation for the reaction at one of the compound formed is calcium chloride​

Answer 1

Answer:

CaCO3 + 2HCl ⇨ CaCl2 + CO2 + H2O

Explanation:

When calcium carbonate reacts with hydrochloric acid, it produces carbon dioxide gas with effervescence. Carbon dioxide used as fire extinguisher. Hence, it extinguishes a burning candle. Therefore, the metal compound A is calcium carbonate.....as per my thinking...

Answer 2

Answer:-

As metal compound released is Calcium Chloride the gas evolved here is CO2. Hence metal A should be Calcium Carbonate. Hence the reaction between Calcium Carbonate and HCl is

CaCO3 (s) + 2HCl (Aq) → CaCl2( Aq) + CO2 (g) + H2O (l)

Thanks