Intermolecular forces

What explains the very high melting and boiling point of water

• Strong dipole-dipole bonds between water molecules
• Strong hydrogen bonds between water molecules
• Dispersion forces which are present in all molecules
• Asymmetrical shape of the polar bonds.

Does CH₄ have hydrogen bonding?

• yes
• no

All molecules have London forces between them, but dipole-dipole and hydrogen bonding are much stronger. Which of these has ONLY London forces?

• I₂

• NH₃

• OCl₂

• SH₂

What type of molecule only experiences London Dispersion Forces (LDF's)?

• Polar Molecule

• Nonpolar Molecule

• Ionic Compound

What elements must be present for a Hydrogen Bond to occur? You can check more than one.

• Nitrogen

• Chlorine

• Sulfur

• Oxygen

• Fluorine

Which is correct about this drawing? Choose 2 answers.

• A is pointing to a covalent bond

  B is pointing to a hydrogen bond

• A is pointing to a hydrogen bond

  B is pointing to a covalent bond

• A would take more energy to break compared to B

• B would take more energy to break compared to A

What type of IMF's would occur in between molecules of Carbon Tetrachloride? You can choose more than one answer.

• London Dispersion Force (LDF)

• Dipole-Dipole

• Hydrogen Bond

• Ion-Dipole

What type of IMF's would occur in between molecules of Sulfur Dioxide? You can choose more than one answer.

• London Dispersion Force (LDF)

• Dipole-Dipole

• Hydrogen Bond

• Ion-Dipole

Which type of IMF's are present between molecules of butanol? Check all that apply

• London Dispersion Force (LDF)

• Dipole-Dipole

• Hydrogen Bonding

• Ion Dipole

Which of the following molecules has hydrogen bonding between molecules of itself?

• HCl
• HI
• HF
• HBr