Metal compound A reacts with dilute hydrochloric acid to produce effervesence.The gas evolved extinguishes a burning candle .Write a balanced chemical equation for the reaction formed is calcium chloride
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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.
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