How do you crystallize potassium nitrate from it’s aqueous solution?

One can crystallize potassium nitrate from it's aqueous solution by controlling heat and evaporation of the water from the solution

You can crystallize potassium nitrate from it's aqueous solution by controlling heat and evaporation of the water from the solution.

Anions are negative charged ions

Ch4 and ph3 are both covalent since they are composed both of non-metals.    ch4 is non- polar because of  london forces and has a geometry of tetrahedral  ph3 , on the other hand, is umbrella shaped polar and has dipole-dipole intermolecular force (imf) . since ph3 is polar, it has a stronger imf