Chem intermolecular forces

London Dispersion forces occur in all molecules, but are stronger in atoms/molecules with more electrons. Which of these has the strongest London Dispersion forces?

• F₂

• Br₂

• I₂

• Cl₂

________ intermolecular forces (IMFs) cause liquids to have ________ boiling points.

• weak; ^high

• strong; _low

• strong; ^high

• external; cold

Tags

NGSS.HS-PS1-3

Intermolecular forces for: CO₂

• London Dispersion Force

• Dipole dipole

• Hydrogen bonding

Which of the following geometries could be nonpolar?

• bent
• tetrahedral
• trigonal pyrimidal
• none of the above

Intermolecular forces are the forces

• within molecules
• between molecules

The weaker the intermolecular forces of a substance the _____________ the boiling point

• higher

• lower

Tags

NGSS.HS-PS1-3

________________________ have the strongest intermolecular forces of attraction.

• Dipole- Dipole

• Dispersion

• Hydrogen Bonds

Tags

NGSS.HS-PS1-3

Does H₂O have hydrogen bonding?

• yes
• no

Tags

NGSS.HS-PS1-3

Does CH₄ have hydrogen bonding?

• yes
• no

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.

Tags

NGSS.MS-PS1-4