00:01
So we need to determine if these are redox reactions or not.
00:04
If in order to be a redox reaction, the charges of the elements need to change from one side to the other.
00:12
If something is reduced, that means its charge goes down.
00:19
Charge goes down.
00:21
It's reduced.
00:23
And then it is also the thing that is reduced is your oxidizing agent.
00:28
Your reducing agent is oxidized.
00:32
I know it seems weird, but that's what happens.
00:35
The charge will increase.
00:39
So let's go through quickly and find the charges on this.
00:43
So here, sodium is plus 1.
00:46
The hydroxide is minus 1.
00:49
Well, actually, the o is minus 2.
00:51
And the h is plus 1.
00:54
Here, each h is plus 1.
00:57
Each o is negative 2.
00:59
And your s is positive 6...