Stoichiometry Practice Test

Copper(II) oxide reacts with carbon monoxide according to the balanced equation: $;\text{CuO}(s)+\text{CO}(g)\rightarrow \text{Cu}(s)+\text{CO}_2(g)$. If $2.0\ \text{mol}$ of $\text{CuO}$ reacts completely with excess $\text{CO}$, how many moles of $\text{CO}_2$ are produced?

Hydrogen gas reacts with chlorine gas according to the balanced equation: $;\text{H}_2(g)+\text{Cl}_2(g)\rightarrow 2\text{HCl}(g)$. If $0.150\ \text{mol}$ of $\text{H}_2$ reacts completely with excess $\text{Cl}_2$, how many moles of $\text{HCl}$ are formed?