Final answer:
Dipole-dipole interactions influence the compound HCl.
Step-by-step explanation:
The intermolecular force that influences the compound HCl is dipole-dipole interactions.
HCl is a polar molecule with a positive hydrogen end and a negative chlorine end. The positive end of one molecule attracts the negative end of another molecule, creating dipole-dipole attractions between HCl molecules.
These dipole-dipole attractions are stronger than the weaker dispersion forces between nonpolar F2 molecules, which is why HCl is a liquid at room temperature and F2 is a gas.