Question

when dilute hydrochloric acid reacts with metal compound A to produce effervescence and the gas produced extinguishes a burning candle. if one of the compound is calcium chloride write an equation to show this​

Answer 1

Answer:

When a metal compound A on reacting with hydrochloric acid shows effervescence which shows the evolution of carbon dioxide gas and it is confirmed by putting off the candle flame.  

So metal compound A is a carbonate of calcium which on reacting with HCl gives calcium chloride and carbon dioxide as gas along with water.

CaCO3(s)+ 2HCl(aq)= CaCl2(s) + CO2(g) + H2O(l)

Explanation:

Answer 2

Answer:

When a metal compound A on reacting with hydrochloric acid shows effervescence which shows the evolution of carbon dioxide gas and it is confirmed by putting off the candle flame.

So metal compound A is a carbonate of calcium which on reacting with HCl gives calcium chloride and carbon dioxide as gas along with water.

CaCO 3 (s) + 2HCl(aq) → CaCl 2 (s) + CO2(g) + H2O(l)

I think you have understood this question and please mark me as brainlist