In a solution of Fe²+ and Aluminum immersed in a solution of Al³+ knowing that aluminum is more reactive than iron, what metal form the anode?

I think aluminum

Yes, Al is the anode (electrons flow FROM the anode) and Fe is the cathode (electrons flow TO the cathode).

To determine which metal forms the anode in this scenario, you need to understand the concept of reactivity in electrochemical cells. The metal that is more reactive will tend to oxidize and lose electrons, ultimately becoming the anode.

In this case, it is stated that aluminum is more reactive than iron. This means that aluminum will be more likely to lose electrons and undergo oxidation compared to iron.

Since the solution contains both Fe²+ (iron) and Al³+ (aluminum), the aluminum ions will be more likely to oxidize and form aluminum atoms. These aluminum atoms will then lose electrons, forming Al³+ ions. Therefore, in this solution, aluminum will form the anode.

To summarize, in a solution of Fe²+ and Al³+ where aluminum is more reactive than iron, aluminum will form the anode as it is more likely to undergo oxidation and lose electrons.