Editing Aqueous solution (section)

== Reactions ==
Reactions in aqueous solutions are usually [[Salt metathesis reaction|metathesis]] reactions. Metathesis reactions are another term for [[double-displacement]]; that is, when a cation displaces to form an ionic bond with the other anion. The cation bonded with the latter anion will dissociate and bond with the other anion.<ref name=":02" />

A common metathesis reaction in aqueous solutions is a [[Precipitation (chemistry)|precipitation]] reaction. This reaction occurs when two aqueous strong electrolyte solutions mix and produce an insoluble solid, also known as a [[Precipitation (chemistry)|precipitate]]. The ability of a substance to dissolve in water is determined by whether the substance can match or exceed the strong [[intermolecular force#Dipole-dipole interactions|attractive forces]] that water molecules generate between themselves. If the substance lacks the ability to dissolve in water, the molecules form a [[Precipitation (chemistry)|precipitate]].<ref name=":1" />

When writing the equations of precipitation reactions, it is essential to determine the precipitate. To determine the precipitate, one must consult a [[Solubility chart|chart of solubility]]. Soluble compounds are aqueous, while insoluble compounds are the precipitate. There may not always be a precipitate. Complete [[ionic equation]]s and net ionic equations are used to show dissociated ions in metathesis reactions. When performing calculations regarding the [[Chemical reaction|reacting]] of one or more aqueous solutions, in general one must know the [[concentration]], or [[molarity]], of the aqueous solutions.{{cn|date=February 2024}}