00:01
Hi there.
00:02
This question asks us to identify the oxidizing agent.
00:07
So before we get that far, let's remind us about oxidation and reduction first.
00:14
And the phrase oil rig is a mnemonic that helps us remember that oxidation is a loss of electrons.
00:30
So oxidation is loss of electrons, while reduction is gain of electrons.
00:45
So oil is oxidation is loss.
00:48
Rig is reduction is gain.
00:51
So we're given an equation here.
00:53
We have 2ag plus.
00:57
I'm going to leave off the states of matter as i write this because they are not necessary for what we are doing here.
01:05
Racts with copper to form 2ag and the copper ion.
01:20
Okay, so let's see if we can identify who is oxidized and who is reduced here in terms.
01:25
In terms of silver and copper.
01:27
So as we look at silver, silver went from positive 1 to 0 on the product side.
01:37
So that means it must have gained an electron.
01:43
So therefore, silver is reduced in this reaction.
01:53
So another way to think about it, it's reduced.
01:55
It went from 1 positive to 0 because it's neutral.
01:59
So neutral is 0.
02:01
So it was reduced...