00:02
Hello, my name is margaret, and today i'm going to help you with problem 17 from chapter 18 of zoomdahl, which is about electrochemistry.
00:10
And the problem says define oxidation and reduction in terms of both change in oxidation number and electron loss or gain.
00:18
So we're going to talk about this in terms of copper.
00:25
Because copper is something that loves to add and subtract lots of different electrons.
00:33
And comes in lots of different oxidation states.
00:37
So reduction, just put it out there, means that we are going to gain electrons.
00:54
And oxidation means that we are going to lose electrons.
01:08
There are lots of different ways to remember this, lots of little kitchy things.
01:17
My dad, who is also an electric chemist like me, taught me a really basic one.
01:23
And his is always n oxidation happens at the anode.
01:28
The idea that if you were to use correct english, because my dad was always a stickler being english and so was my mother.
01:43
And so n oxidation happens.
01:56
Right? so that's all he taught me.
02:01
And that's what he teaches his students.
02:04
And so i think there's others.
02:09
I don't know them.
02:10
I know they exist...
