00:01
To write the net ionic equation, we first need to write the complete formula equation and see whether or not a precipitate forms.
00:07
We have zni2, which according to solubility rules is aqueous, and pbclo4, which according to solubility rules is also aqueous.
00:22
When the cations switch places, the zinc combines with the perchlorate, with zinc having a 2 plus charge and perchlorate having a 1 minus, we'll need two perchlorates for every zinc.
00:38
Most perchlorates are soluble, so this is aqueous also.
00:45
Most iodides are soluble, but lead is an exception, so we get pbi2, pb having a 2 plus charge.
00:55
Requires two iodides, each having a one minus charge for every lead...