IMF

True or false: All molecules have London Dispersion forces between them. The strength of London dispersion force decreases as the weight of that molecule increase (molecular weight)

• True

• False

• Tralse

Which of the following statements correctly explains why hydrogen bonding is such a strong intermolecular force?

• There is an attraction between a small, weakly electronegative hydrogen atom and a large, strongly electronegative atom of fluorine, nitrogen, or oxygen

• There is an attraction between a small, highly electronegative hydrogen atom and a large, highly electronegative fluorine atom

• There is an attraction between the hydrogen and oxygen atoms, only

• There is an attraction between the hydrogen and nitrogen atoms, only

Intermolecular forces for: NH₃

• London dispersion Forces

• Dipole dipole

• Hydrogen bonding

Intermolecular forces for: CO₂

• London dispersion Forces

• Dipole dipole

• Hydrogen bonding

Tags

NGSS.HS-PS1-3

NGSS.HS-PS1-5

Which molecule: Br₂, HCl, H₂S, or NH₃, will most likely have London dispersion forces as the MOST important IMF considered when determining melting/boiling points?

• Br₂, it only has dispersion forces when interacting

• HCl, it can participate in dipole-dipole interactions and also dispersion forces

• H₂S, it can participate in dipole-dipole interactions and also dispersion forces

• NH₃, it can participate in hydrogen bonding and also dispersion forces

Which substance has the weakest intermolecular forces?

• Substance A, boiling point of 75 °C

• Substance B, boiling point of 105 °C

• Substance C, boiling point of 25 °C

• Substance d, boiling point of 45 °C

Tags

NGSS.HS-PS1-3

Which type of IMF is responsible for the attraction pictured above?

• Dipole-Dipole Interaction

• Ion-Dipole Interaction

• Hydrogen Bonds

• Covalent Bond

• Ionic Bond

Which of the following molecules predominantly consists of dipole-dipole forces?

• HF

• Ne

• O₂

• ICl

Type of intermolecular force present in I₂, Br₂, and Cl₂.

• dipole dipole

• H-bond

• London dispersion

• metallic

Which substance would have the weakest intermolecular forces of attraction?

• CH₄

• NaCl

• H₂O

• MgF₂

Tags

NGSS.HS-PS1-3