Of Neon, Argon, Oxygen and Water: which substance has the strongest intermolecular forces?

The substance with the strongest intermolecular forces is __________ because it requires the __________ (most/least) heat to change from solid to liquid.

1 answer

The substance with the strongest intermolecular forces is water because it requires the most heat to change from solid to liquid.

Water has hydrogen bonds, which are stronger than the dispersion forces present in neon and argon, as well as the dipole-dipole interactions in oxygen. This results in a higher melting point for water compared to the other substances listed.