Intermolecular Forces Practice

Propane is a gas at STP, while bromine is a liquid at STP. Which statement correctly explains these observations?

• Bromine has weaker intermolecular forces than propane does

• Bromine has greater molecular polarity than propane does

• Bromine has weaker molecular polarity than propane does

• Bromine has stronger intermolecular forces than propane does

Which substance would we predict to have the lowest boiling point?

• CH₄

• NaCl

• H₂O

• MgF₂

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of these has the strongest London forces?

• F₂

• Br₂

• I₂

• Cl₂

What type of forces will CH₃OCH₃ have?

• London Dispersion

• London Dispersion and Dipole Dipole

• London Dispersion, Dipole Dipole and Hydrogen bonding

• Ionic Bonding

Why does water have a higher boiling point that hydrogen fluoride?

• Oxygen has a lower electronegativity

• Water is a smaller molecule

• Water can make two hydrogen bonds

• Water is wet

Intermolecular forces depend on the size of the charge

• true

• false

Tags

NGSS.HS-PS2-6

If we heat water then:

• some of the bonds between the hydrogen and oxygen break

• all of the bonds between the hydrogen and oxygen break

• some of the bonds between water molecules will break

Tags

NGSS.MS-PS1-4

Does NH₃ or PH₃ have a higher boiling point?

• NH₃ because it has the strongest intermolecular forces

• PH₃ because it has the strongest intermolecular forces

• NH₃ because it has the weakest intermolecular forces

• PH₃ because it has the weakest intermolecular forces

Tags

NGSS.HS-PS1-1

Intermolecular forces are the forces

• within molecules

• between molecules

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

• Higher

• Lower

• The same