00:01
To identify what is oxidized, what is reduced, what is the oxidizing agent, and what is the reducing agent, it's going to be helpful to assign as suggested oxidation numbers, or sometimes called oxidation states.
00:16
So the reaction is this one shown here, producing copper 2 nitrate, c .u.
00:28
N .3, 2, plus 2n0, and 4.
00:36
For h2o.
00:40
Hydrogen and oxygen typically have an oxidation state of negative 2.
00:45
Well, hydrogen plus one, oxygen minus 2.
00:49
This will help when we assign oxidation states.
00:54
Any element by itself has an oxidation state of zero.
00:58
So copper here is zero.
01:00
Oxygen is minus 2.
01:02
There are three of them, so that's minus 6.
01:05
Hydrogen is plus 1.
01:07
So we've got minus 6 plus 1.
01:07
So we've got minus 6 plus 1, that's minus 5, so that means nitrogen needs to be plus 5, so that everything adds up to 0...