Non-polar molecules

[Primarygun]

Ionic compound decomposes when polar molecules attract them.

How about non-polar molecules?

What forces make the non-polar molecules dissolve in non-polar molecules solvent but not in polar?

[mak10]

dispersion forces. non-polar molecules, when mixed, set up induced dipole-dipole attractions (van dar waals forces) which are much weaker than the ionic bonds in ions and permanent dipole attractions of polar molecules.