IMF Regents Chemistry

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.HS-PS1-3

In general, substances with stronger intermolecular forces have ___________  boiling points than those with weaker intermolecular forces

• higher
• lower

Tags

NGSS.HS-PS1-3

Rank these in order of strength:

covalent bond

dispersion force

hydrogen bond

dipole-dipole attraction

• dipole-dipole > covalent bond > hydrogen bond > dispersion

• dispersion > dipole-dipole > hydrogen bond > covalent bond

• covalent bond > hydrogen bond > dipole-dipole > dispersion

• hydrogen bond > dipole-dipole > dispersion > covalent bond

Intermolecular forces are the forces

• within molecules
• between molecules

Which of the following has the highest boiling point?

• H₂
• NH₃
• N₂
• O₂

Intermolecular force present in Cl₂?

• dipole dipole

• H-bond

• dispersion

• metallic

Which substance would have the weakest intermolecular forces of attraction?

• CH₄

• NaCl

• H₂O

• MgF₂

Which substance would have the highest boiling point at standard pressure?

• H₂O

• CCl₄

• CO₂

• NBr₃

________________________ have the strongest intermolecular forces of attraction.

• Dipole- Dipole

• Dispersion

• Hydrogen Bonds

Intermolecular forces for: CO₂

• Dispersion Force

• Dipole dipole

• Hydrogen bonding