Question

HEY!!!!
Plz help!!!!
Metal compound A reacts with dilute hydrochloric acid to produce effervescence. The gas evolved extinguishes a burning candle. Write a balanced chemical equation for the reaction if one of the compounds formed is calcium chloride.
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Answer 1

Answer:

When calcium carbonate reacts with hydrochloric acid, it produces carbon dioxide gas with effervescence. ... Hence, it extinguishes a burning candle.

the compound 'A' is calcium carbonate .The gas evolved is carbon dioxide which extinguishes a burning candle .

CaCO3(aq) + 2HCl(dil) --------- CaCl2(aq) + H2O(l) + CO2(g)