What happens when acids react with compounds made of carbonates?

HA + BCO3 - > BA + H2O + CO2

or

acid + some carbonate - > salt + water + carbon dioxide

the acid is neutralized and produces a salt, water, and co2

You get products like:

acid + metal carbonate - > salt + water + carbon dioxide.

The salt depends on the type of acid you use and the reactivity depends on the type of metals you use. Not all metals are reactive.