a very polar, single, covalent bond, yes. This would be an ionic bond. The electronegativity of Hydrogen is about 2.2 and the electronegativity of Fluorine is about 4.0. The difference is 1.8 which...
I think HF has a hydrogen bonding within its molecule, since a hydrogen bond is formed when a hydrogen atom forms a bonding with either flourine, nitrogen or oxygen...