Intermolecular Forces

Which of the following factors plays an important role in the identification of specific intermolecular forces in a molecule?

• bond type
• density
• solubility
• molecular polarity

Tags

NGSS.HS-PS2-6

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

Which substance would have the weakest intermolecular forces of attraction?

• CH₄

• NaCl

• H₂O

• MgF₂

Intermolecular forces for: NH₃

• London dispersion Forces

• Dipole dipole

• Hydrogen bonding

In a polar covalent bond, the electrons gather around...

• The atom with the Greatest Electronegativity

• The atom with the Lowest Electronegativity

• Each atom Equally

• None of the Above

Tags

NGSS.HS-PS1-1

In a nonpolar covalent bond, the electrons gather around...

• The atom with the Greatest Electronegativity

• The atom with the Lowest Electronegativity

• Each atom Equally

• None of the Above

Partial charges are present in which type of bond?

• Ionic

• Nonpolar Covalent

• Polar Covalent

• Both Polar Covalent and Ionic

Is this molecule polar or non-polar?

• Non-polar

• Polar

Polar or nonpolar? PH₃

• polar

• nonpolar

Tags

NGSS.HS-PS1-1

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.