00:01
In this problem, we're given different resonant structures, and we're asked to draw arrows to show the movement of electrons.
00:08
So in our first one, we noticed that our double bond shifts over.
00:13
So electrons from our double bond come drop in here.
00:19
So we find this double bond, and now we're bond short at this carbon, moving our positive charge there.
00:27
Now, in our next structure, then, we see that oxygen now has a positive charge, we have a double bond here.
00:34
But this double bond didn't move.
00:37
So it's actually electrons from one oxygen.
00:40
A set can drop down in here, and that's how we get this structure.
00:45
And now we only have one pair, one pair on our oxygen...