00:01
So normally we know that the oxidation state of oxygen is negative 2, and the oxidation state of hydrogen is positive 1.
00:07
But this is not always the case for all situations.
00:11
And these four that we're going to look at, looking at our exceptions to this rule.
00:15
So let's go ahead and start looking at our first one.
00:18
So we see, first for magnesium, we have just one magnesium, and we know that the oxidation state for magnesium is 2.
00:28
And then we have two hydrogens, which we're looking for the oxidation state for, and it is a neutral compound.
00:39
So we can find that x is equal to negative 1.
00:43
For this one, first we have cesium.
00:45
Seism has an oxidation state of 1.
00:48
You know this based in our rules and looking at our periodic table.
00:53
And then we have three oxygens, which is what we're trying to find in this problem.
00:58
It's neutral.
00:58
So we find x to be a negative one -third...