I'm a little confused on hydrogen bonds. Here's a sample question and answer I'm having trouble with: 1) In a single molecule of water, two hydrogen atoms are bonded to a single oxygen atom by A) hydrogen bonds. B) nonpolar covalent bonds. C) polar covalent bonds. D) ionic bonds. E) van der Waals interactions. Answer: C OK - polar covalent bonds are holding the hydrogen atoms to the oxygen atom. That I can understand. But couldn't the interaction between the hydrogen and the oxygen also be classified as a hydrogen bond? Hydrogen bond, as I was taught in Chem, is simply the interaction between H and F, O, or N. So couldn't the answer also be A?