Metal compound 'A' reacts with dilute hydrochloric acid to produce efferervescence. The gas evolved
extinguishes a burning candle. Write a balanced equation for the reaction, if one of the compounds formed is
calcium chloride.
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when a metal compoun a reacting with hcl shows effervescence which shows the evolution of co2 gas and it is confirmed by putting off the candle flame. so, metal compound a is a carbonate of calcium which on reaction with hcl gives calcium chloride and carbon dioxide as gas along with water. the equation is_ caco3(s)+ 2hcl(aq) - cacl2(s)+ co2(g)+ h20(l).
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