What is the net ionic equation for dilute hydrochloric acid with solid calcium carbonate?

Answer 1

CaCO3(s) + 2HCl(aq) -> CaCl2(aq) + H2CO3(aq)

is the balanced chemical equation

H2CO3 is not stable in this form, so it splits into CO2(g) + H2O(l)

Therefore the true equation will be:

CaCO2(s) + 2HCl(aq) -> CaCl2(aq) + CO2(g) + H2O(l)

You NIE will start like this:

CaCO2(s) + 2H+(aq) + 2Cl-(aq) -> Ca2+(aq) + 2Cl-(aq) + CO2(g) + H2O(l)

and will end as:

2H+(aq) + CaCO2(s) -> Ca2+(aq) + CO2(g) + H2O(l)

Answer 2

The net ionic equation for dilute hydrochloric acid (HCl) with solid calcium carbonate (CaCO3) is H+ (aq) + CO3^2- (aq) -> H2O (l) + CO2 (g). This represents the reaction where HCl dissociates to provide H+ ions, which react with the CO3^2- ions from CaCO3 to form water and carbon dioxide.