00:01
To answer this, let's balance the redox reaction.
00:02
We see that br -o -3 -1 goes to br2, and br -1 also goes to br2.
00:09
This is sometimes called the disproportionation reaction, where the same element is being oxidized and reduced.
00:16
We have two bromines, so we'll add a 2 over here.
00:19
That then gives us a 2 -minus charge, so we're going to need two electrons here.
00:27
Going back up to this first half reaction, we had two bromines here, so we need two right here.
00:35
We now have six oxygen, so we're going to need six waters.
00:41
Now we have 12 hydrogen, so we're going to need 12 hydrogen ions...