Answer:
Dissolving is just when water bonds and separates the cation and anion.
Water's polarity is the reason why it surrounds each ion and separates it from the oppositely charged ion thus dissolving it.
The negative end of the water surround the positive ion and the positively charged end of water surround the negative ion.
If there is a polar molecule it will bond in a network with the polar water molecules
This is why water will not dissolve non-polar molecules because the polarity has no affect on a non-polar molecule.