In recent years engineers have been working on an aluminum-air battery as an alternative energy source for electric vehicles. The battery consists of an aluminum anode, which is oxidized to solid aluminum hydroxide, immersed in an electrolyte of aqueous KOH. At the cathode oxygen from the air is reduced to hydroxide ions on an inert metal surface. Write the two half-reactions for the battery. Please include all states of matter

The anode is oxidized and the cathode is reduced, in this way we are facing a redox reaction or oxide reduction.

Where the oxygenated compound oxidizes, and the protonized reduces.

Explanation:

When he says that oxygen is reduced the reaction would be:

OXYGEN + H (+1) > OH-

And the reaction where solid aluminum hydroxide is formed will be:

Al (+3) + 3 KOH (aqueous) > Al (OH) 3 (solid) + 3 K (+1),

Here we see how aluminum is immersed in an aqueous medium and becomes a solid compound in the form of hydroxide, where when attached to an oxygen, it is oxygenated and oxidized.

This reaction is considered irreversible

if you mean hydrogen and oxygen then water is the product