How many moles of carbon dioxide are produced in the reaction between hydrochloric acid and calcium carbonat when 2 moles of HCI are used to start with?2HCl+CaCO 3 CaCl 2 +CO2 +H2O A.2
B. 3
C.1
D. 4

C. 1.

Explanation:

Hello!

In this case, given the reaction:

Thus, since there is a 2:1 mole ratio between HCl and CO2, as we are given 2 mol HCl, we compute the moles of CO2 as shown below:

Thus, the answer is C. 1.

Best regards!