The various species involved in the reaction have the following chemical formulas:
zinc carbonate: ZnCO3
nitric acid: HNO3
Zinc nitrate: Zn(NO3)2
carbon dioxide: CO2
The chemical equation for the reaction can be written as:
`ZnCO_3 + HNO_3 -> Zn(NO3)_2 + H_2O + CO_2`
Let us check if the equation is balanced. A balanced chemical reaction has the same number of each species on the reactant and the product side.
Zinc: 1 atom on each side
C: 1 atom on each side
O: 6 atoms on reactant side and 9 atoms on product side
H: 1 atom on reactant side and 2 on product side
N: 1 atom on reactant side and 2 on product side.
Thus, apart from zinc and carbon, all other atoms are unbalanced. A simple way to balance them is by using a multiplier of 2 for nitric acid.
The new equation is:
`ZnCO_3 + 2HNO_3 -> Zn(NO_3)_2 + H_2O + CO_2`
Now, if we count, all the species have the same numbers of atoms on both the reactant as well as the product side of the reaction.
Thus, this is the well-balanced chemical equation for the reaction.
Hope this helps.