00:01
In this problem you're looking at a reaction between aqueous solutions of potassium sulfate.
00:05
Our sulfides, we have 4 plus s minus 2.
00:11
And we bring down our superscripts and subscripts to get k2s for potassium sulfide.
00:18
And then we have copper 2 sulfate.
00:24
And remember here, we're not going to have cu2so42.
00:31
You're going to think of dividing out a 2 and you just get cuso4.
00:37
And both of these are in aqueous solutions.
00:40
Then we're going to have what's called a double replacement reaction.
00:44
So our 2 anions, you can think of them as switching places.
00:48
So then you have potassium and sulfate.
00:58
So you have k2so4...