Which best represents the reaction of calcium and zinc carbonate (znco3) to form calcium carbonate (caco3) and zinc?

Answer : The balanced chemical reaction will be,

Explanation :

Balanced chemical reaction : It is defined as the reaction in which the number of atoms of individual elements present on reactant side must be equal to the product side.

If the amount of atoms of each type on the left and right sides of a reaction differs then to balance the equation by adding coefficient in the front of the elements or molecule or compound in the chemical equation.

The coefficient tell us about that how many molecules or atoms present in the chemical equation.

As per question, when calcium react with zinc carbonate then it react to give calcium carbonate and zinc as a product.

The balanced chemical reaction will be,

This reaction is a single replacement reaction in which the most reactive elements displaces the least reactive element from its solution.

a corroding iron, if that's one of your choices