Question

What is the equation for Calcium Carbonate?

Answer 1

`CaCO_3` is the chemical formula of Calcium Carbonate.

Explanation:

Its not the equation, its called the chemical formula. The (chemical) equation is getting product(s) by the reaction between the reactants,

Its equation can be written like this:
`Ca^(2+) (aq)+ CO_3^(2-) (aq) -> CaCO_3 (s)`