Please help with limiting reagents highschool chem problem please

Question

3 Fe (s) + 4 H₂0 (g) -› Fe₃O₄ (g) + 4 H₂ (g)

When 8 moles H,O is mixed with 4 moles Fe, which is the limiting reagent?

Answer 1

One easy way to identify the limiting reagent is to divide the moles of each reactant by the corresponding coefficient in the balanced equation, and whichever value is less represents the limiting reagent.

3 Fe (s) + 4 H₂0 (g) -› Fe₃O₄ (g) + 4 H₂ (g)

For Fe we have: 4 moles (÷3->1.2)

For H2O we have: 8 mols (÷4->2)

So in this case, 1.2 is less than 2 so Fe is the limiting reagent.