Question

why do egg shells dissolve in dilute hydrochloric acid ?

Answer 1

THE COMPONENT OF EGG SHELL IS MADE UP OF CALCIUM CARBONATE WHICH REACTS WITH HYDROCHLORIC ACID TO FORM CARBONDIOXIDE , WATER , CALCIUM CHLORIDE AND HEAT ;-

CaCO₃ + HCL  .........>  CaCL₂ + CO₂ + H₂O + HEAT

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Answer 2

Hi, my friend. Here is your answer.

We know that egg shells are made up of calcium carbonate which dissolves in Hydrochloric acid. Acid is dissolved to form Calcium chloride and water and carbon dioxide is liberated with effervescence.

Equation is
CaCO3+ HCl gives product CaCl2 + H2O +CO2( liberated).

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