chemical equations

Question

When aluminum is mixed with iron(III) oxide, iron metal and aluminum oxide are produced along with a large quantity of heat.

Fe₂O₃(s) + 2 Al(s)  2 Fe(s) + Al₂O₃(s) + heat

What mole ratio would you use to determine moles Fe if moles Fe₂O₃ is known?

Answer 1

1 mol Fe₂O₃ x 2 mol Fe/ mol Fe₂O₃ = moles Fe

So the mole ratio is 1 mol Fe₂O₃ to 2 moles Fe