Stoichiometry

What is the mole ratio of $H_{2}$ to $O_{2}$ in the reaction $2H_{2} + O_{2} \rightarrow 2H_{2}O$?

If 3 moles of $NaCl$ react with excess $AgNO_{3}$, how many moles of $AgCl$ will be produced in the reaction ?

In the reaction $C_{3}H_{8} + 5O_{2} \rightarrow 3CO_{2} + 4H_{2}O$, how many moles of are required to completely burn 1 mole of ?

How many grams are in 0.5 moles of $H_{2}O$? (Molar mass of $H_{2}O$ is approximately $18g\mathrm{/}mo$)

What is the coefficient of $H_{2}$ when balancing the equation $C_{2}H_{6} + O_{2} \rightarrow CO_{2} + H_{2}O$?

In the reaction $2H_{2} + O_{2} \rightarrow 2H_{2}O$, how many moles of are produced from 4 moles of ?

If you start with 2 moles of $Ca$ and excess $O_{2}$, how many moles of $CaO$ can be formed in the reaction $2Ca + O_{2} \rightarrow 2CaO$?

What is the total number of moles of products formed in the reaction $2Fe + 3Cl_{2} \rightarrow 2FeCl_{3}$?