Water is by far the most important solvent for chemical reactions.
A high percentage of naturally occurring chemical reactions occur with water as the solvent. The polar nature of the water molecule leads to important characteristics as a solvent We have already seen how the polarity of water affects the solution of ionic compounds . If the molecules in the solid are polar then it is possible that the solid can dissolve in water. On the other hand if the molecules of the solid are nonpolar then there is no chance that the solid will dissolve in water. This is easy to understand because if the solid has polar molecules then there is an electrostatic attraction between the water and solid molecules.