Question

Metal compound a reacts with dilute hydrochloric acid to produce effervescence the gas evolve extinguishers a burning candle write a balanced chemical equation for the reaction if one of the compound formed is calcium chloride

Answer 1

Answer:

Metal compound A is CaCO3  

Gas evolved is CO2    

Balanced equation: CaCO3(s) + 2HCl(aq) → CaCl2(aq) + CO2(g) + H2O(l)

Explanation:

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Answer 2

Answer:-

As metal compound released is Calcium Chloride the gas evolved here is CO2. Hence metal A should be Calcium Carbonate. Hence the reaction between Calcium Carbonate and HCl is

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

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