Question

What is the mole ratio of calcium carbonate to carbon dioxide in the reaction between hydrochloric acid and calcium carbonate? 2HCl+CaCO3 CaCl2 +CO2 +H2O

A. 2:2
B. 1:1
C. 2:1
D. 1.2

Answer 1

Answer:

B. 1:1.

Explanation:

Hello!

In this case, given the following chemical reaction:

$2HCl+CaCO_3 \rightarrow CaCl_2 +CO_2 +H_2O$

We can see that the coefficient in calcium carbonate is 1 and that of carbon dioxide is also 1, therefore the mole ratio between them is B. 1:1.

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