Question

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

Answer 1

CaCO3 + dil. 2HCl ---------->CaCl2 + CO2 + H20

Answer 2

Equation :

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

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