<P> The polarity , dipole moment , polarizability and hydrogen bonding of a solvent determines what type of compounds it is able to dissolve and with what other solvents or liquid compounds it is miscible . Generally , polar solvents dissolve polar compounds best and non-polar solvents dissolve non-polar compounds best : `` like dissolves like '' . Strongly polar compounds like sugars ( e.g. sucrose ) or ionic compounds , like inorganic salts ( e.g. table salt ) dissolve only in very polar solvents like water , while strongly non-polar compounds like oils or waxes dissolve only in very non-polar organic solvents like hexane . Similarly , water and hexane ( or vinegar and vegetable oil ) are not miscible with each other and will quickly separate into two layers even after being shaken well . </P>
<P> The polarity , dipole moment , polarizability and hydrogen bonding of a solvent determines what type of compounds it is able to dissolve and with what other solvents or liquid compounds it is miscible . Generally , polar solvents dissolve polar compounds best and non-polar solvents dissolve non-polar compounds best : `` like dissolves like '' . Strongly polar compounds like sugars ( e.g. sucrose ) or ionic compounds , like inorganic salts ( e.g. table salt ) dissolve only in very polar solvents like water , while strongly non-polar compounds like oils or waxes dissolve only in very non-polar organic solvents like hexane . Similarly , water and hexane ( or vinegar and vegetable oil ) are not miscible with each other and will quickly separate into two layers even after being shaken well . </P>
in general what two classes of materials will dissolve in water
in general what two classes of materials will dissolve in water
polar compounds ionic compounds
polar compounds ionic compounds