Answer:
C. 1.
Explanation:
Hello!
In this case, given the reaction:
[tex]2HCl+CaCO_3\rightarrow CaCl_2 +CO_2 +H_2O[/tex]
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:
[tex]n_{CO_2}=2molHCl*\frac{1molCO_2}{2molHCl}=1molCO_2[/tex]
Thus, the answer is C. 1.
Best regards!
