Answers

2015-05-06T21:41:22+05:30
Ans: Chemical formula of Marble is CaCO3. When this CaCO3 reacted with dilute HCl it produces Calciumchloride and Water along with liberation of Carbon dioxide gas.
 
CaCO3 + 2HCl → CaCl2 + H2O + CO2

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2015-05-07T08:42:31+05:30
when CaCO3 (marble) react with dilute HCl,it produces CaCl2 + H2O along with liberation of Carbon dioxide gas.

                           OR
we know that:

Metal   Carbonate + Acid => metal salt + CO2 + H2O

hence, CaCO3 + 2HCl     => CaCl2 + CO2 + H2O
 




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