What happens if chalk or marble is attacked with hydrochloric acid?

Chalk, marble – these materials are formed by the chemical CaCO3

СаСО3 + 2HCl = CaCl2 + H2O + CO2

Са2+ + СО3 2- + 2H+ + 2Cl  = Са2+ + 2Cl + H2O + CO2

СО3 2- + 2H= H2O + CO2



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