> See also: > - [[Solutions & Concentrations]] # Solubility vs Dissociation  ###### Soluble Compound Rules | Compound | Important Exceptions | | ---------------------------------------------------- | -------------------------------------------------------------------- | | Group 1 Metal Cations & The Ammonium Ion | None | | The Halide Ions | Halides of: $Ag^+, Hg_{2}^{2+}, Pb^{2+}$ | | The Acetate, Bicarbonate, Nitrate, and Chlorate Ions | None | | The Sulfate Ion | Sulfates of: $Ag^+, Ba^{2+}, Ca^{2+}, Hg_{2}^{2+}, Pb^{2+}, Sr^{2+}$ | ###### Insoluble Compound Rules | Compound | Important Exceptions | | ------------------------------------------------ | -------------------- | | Carbonate, Chromate, Phosphate, and Sulfide Ions | Compounds of these ions with group 1 metal cations or ammonium ion. | | Hydroxide Ion | Hydroxides of group 1 metal cations and $Ba^{2+}$ | # Dissociation **Dissociation** is a general process in which *ionic* molecules *break down* into smaller parts (smaller molecules, atoms, ions, etc.). This can sometimes simply be a physical change (i.e. sugar/food coloring in water) or - Molecules do not need to fully break down during dissociation. - Dissociation can be used to describe [[chemical reactions]] occurring with any states of matter, it is not restricted