Iron oxide reacts with aluminum to give aluminum oxide and iron. What kind of chemical reaction is this?

Question

the answer can either be combustion, decomposition, replacement, or synthesis. And I didn’t really learn this and if I did I don’t remember doing this in class, can you please help me?.

Answer 1

Iron(II) oxide is FeO

Iron(III) oxide is Fe₂O₃

Aluminum is Al

In either case of iron oxide, this is a single replacement reaction where Al is more active than Fe and so it will replace the Fe. Using Fe₂O₃ as example, you have

2Al + Fe₂O₃ ==> 2Fe + Al₂O₃