How do properties of ionic and molecular compounds differ?

1. Have high melting points.
2. Have high boiling points.
3. Tend to be soluble in water.
4. Conduct electricity in liquid form and in aqueous solution.
5. Are usually hard and brittle solids.
6. Have high enthalpies of fusion.
7. Have high enthalpies if vaporization.

:

1. Have low melting points.
2. Have low boiling points.
3. Have widely varying solubilities in water.
4. Do not conduct electricity.
5. Are usually soft in the solid form.
6. Have low enthalpies of fusion.
7. Have high enthalpies of vaporization.