solve this eq.---urgent

As CaCO3 is insoluble in water, we cannot write CaCO3(s) as Ca2+(s) and [CO3]2-(s).
So we need to write CaCO3(s).

The ionic equation is:
CaCO3(s) + 2H+(aq) + 2Cl-(aq) --> [Ca]2+(aq) + 2Cl-(aq) + CO2(g) + H2O(l)

As [Cl]- is a spectator ion, we don't need to write it in the ionic equation.

So, the FINAL ionic equation is:

CaCO3(s) + 2H+(aq) --> [Ca]2+(aq) + CO2(g) + H2O(l)

CaCO3(s) + 2H[+](aq) --> Ca[2+](aq) + CO2(g) + H2O(l)

both sides cancel 2Cl[-]