The correct equation for the dissociation of NH4Cl in water is:
NH4Cl → NH4+ + Cl-
Here's a breakdown of the dissociation process:
1. NH4Cl breaks down into NH4+ (ammonium ion) and Cl- (chloride ion) when dissolved in water.
2. The positive NH4+ ion comes from the ammonium part of the compound, while the negative Cl- ion comes from the chloride part.
Therefore, when NH4Cl dissociates in water, it forms NH4+ and Cl- ions.