Determine the number of moles of Fe
produced from 2.0 moles of Al.

You'll get 2 moles of Fe at the end of the reaction

Explanation:

Since the reaction is: Fe2O3 + 2 Al → 2 Fe + Al2O3:

The relation between the reactant Al and the product Fe is, basically, 2:2. This means that you'll get the same amount of Fe as of Al you put into the reaction. So considering that you have 2 moles of Al and Fe2O3 in excess, you'll recieve 2 moles of Fe at the end.