Question

What is the action of hydrochloric acid on marble?

Answer 1

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.

Answer 2

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