# Balanced equation CaCO_3 \to CaO + CO_2, how many moles of CO_2 are produced if you start with 3...

## Question:

Balanced equation {eq}CaCO_3 \to CaO + CO_2, {/eq} how many moles of {eq}CO_2 {/eq} are produced if you start with 3 mol of {eq}CaCO_3? {/eq}

## Stoichiometry:

Stoichiometry is the area of study concerned with quantities of chemical species produced or required for a certain chemical reaction. The balanced chemical equation gives the molar ratio needed to convert the amount of one substance to another.

We start by establishing the balanced chemical equation for the given reaction.

{eq}CaCO_3 \to CaO + CO_2, {/eq}

Using the mole ratio from the balanced chemical equation we can solve for the moles of CO2 produced.

{eq}3~mol~CaCO_3\times\frac{1~mol~CO_2}{1~mol~CaCO_3}~=~3~mol~CO_2 {/eq}

Therefore, 3 mol of CO2 can be produced from 3 mol of CaCO3