H2O has a higher boiling point than HF because:
Correct answer: B. H2O can form more hydrogen bonds
- A. H2O is more polar than HF
- B. H2O can form more hydrogen bonds
- C. H2O has higher molecular weight
- D. H2O has more atoms
- E. H2O does not have a higher boiling point than HF
Explanation
Hydrogen bonds are stronger than other intermolecular forces, and water can form up to four hydrogen bonds per molecule, whereas HF can form only two hydrogen bonds per molecule.
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Chemical bonding explains molecular shape through VSEPR theory and distinguishes sigma bonds from pi bonds. Questions involve hybridization, bond angles, dipole moment and bond energy, including how electron-pair repulsion determines geometry and how bond polarity differs from the overall polarity of a molecule.
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