00:01
Hi there.
00:02
In this question, we are combining two aqueous ionic compounds.
00:08
So therefore, what we have is a double replacement reaction.
00:16
In a double replacement reaction, as i mentioned, it's two aquaic ionic compounds.
00:20
So i'm going to represent those as ab and xy.
00:24
And what they do is they exchange ions.
00:26
The positive ion from the first combines the negative ion from the second, and the positive ion from the second combines with the negative ion from the first.
00:36
By definition, to really have a reaction, we must form an insoluble product.
00:46
Okay, so in this question, we are combining two aquas solutions.
00:51
We have ammonium acetate, so that is nh4, and then c2h302 is acetate.
01:00
And i'm just going to write the molecular equation first.
01:04
And then we'll write the complete ionic equation.
01:06
So this is aquius, and we are reacting this with potassium sulfide.
01:12
So that would be k2s.
01:18
When these exchange ions, the ammonium, the nh4 with its single positive charge, is going to combine with the sulfide, and the potassium will combine with the acetate.
01:36
All right.
01:37
Well, when we look at the solubility rules, we see that ammonium with sulfide is soluble.
01:45
So this is aquaous.
01:47
Also, potassium with acetate is soluble.
01:52
So that is also aqueous.
01:54
So by definition, we really don't have a reaction.
01:57
But this question does want the complete ionic equation.
02:01
It says for the reaction that takes place.
02:03
Well, technically a reaction doesn't take place, but we will write our complete ionic equation here in a moment...