What is the action of hydrochloric acid on marble?
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Pieces of marble are thrown into hydro-chloric acid. Explanation: Calcium carbonate is dissolved by hydrochloric acid, thereby forming gaseous carbon dioxide: The combined reactants have a higher chemical potential than the combined products, i.e. the reaction takes place spontaneously.
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The reaction which will take place :-CaCO3 + HCl → CaCl2 + H2O +CO2
Calcium is a alkaline earth metal and we know that :-
Metal carbonate + acid → salt +H20+CO2
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