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2014-08-23T20:48:39+05:30
When dilute HCl is added to egg shell a reaction occurs between the acid and calcium present in the shell

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2014-08-23T20:48:42+05:30

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Egg shells are just the same as marble , they contain calcium carbonate CaCO3.
So when u react CaCO3 with HCl CaCO3 + HCl --- CaCl2 + H20 + C02 so u will see water + carbondioxide coming out.
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