Eventually, when enough electrons travel to this location, what will happen to our positive charge in this speaker and our positive charge in this speaker? Well, we're going to have a build up, a positive charge in this speaker because this metal bar releases ions, right while in this speaker, these ions found within our solution are taken up by this metal bar, meaning there's a decrease in positive charge found on this side. So eventually, if we don't have anything connecting them like a salt bridge, the electrons will stop flowing. So in order for the electrons to continue to flow, the circuit, this circuit must be closed. And it's closed using this sold bridge. And what happens is this salt dissociates into k plus.