Now, now that we know what our layout of our electrolytic cell is, let's talk about the oxidation and reduction reactions. Now, when we spoke about molten sodium chloride, only one oxidation reaction was possible, and only one reduction reaction was possible. But now we're in the presence of a solvent, namely water. So water is also capable of undergoing oxidation, and water likewise, is also capable of undergoing reduction. So let's look at oxidation first. So what atoms are able to oxidize?