What is the predominant intermolecular force in the liquid state of each of these compounds: hydrogen fluoride (hf), carbon tetrafluoride (cf4), and hydrogen sulfide (h2s) ?

HF - The liquid state of this compound will exhibit hydrogen bonding due to the large electronegativity of H and F.

CF4 - The liquid state of this compound will exhibit van der Waals forces.

H2S - The liquid state of this compound will exhibit dipole-dipole or electrostatic attraction forces.