No. It is not balanced.
There is no such thing as (neutral) H3O, nor is there any CaCl. The products should be H2O and CaCl2.
How did you get 3 H's in the products with only one H in the reactants? What happened to two of the three O atoms you started out with?
Try again.
HCl+CaCO3 --> CaCl+H3O balanced?
2 answers
Tks. As I thought