# How many moles of aluminum are needed to react completely with 5.4 mol of FeO?

May 2, 2017

#### Answer:

Do you mean the $\text{thermite reaction}$? The substrate is not $\text{ferrous oxide}$.

#### Explanation:

$\text{Ferric oxide}$ reacts with $\text{aluminum}$ to give molten iron and $\text{aluminum oxide}$:

$F {e}_{2} {O}_{3} \left(s\right) + 2 A l \left(s\right) \rightarrow 2 F e \left(l\right) + A {l}_{2} {O}_{3} \left(s\right) + \Delta$

This reaction is still used on railways to join (i.e. weld) lengths of rail track together.

Anyway over to you for clarification.