IMF Review

What type of intermolecular forces do nonpolar molecules exhibit?

• Hydrogen bonding

• Dipole-dipole interactions

• Only London dispersion forces.

• Ionic bonding

What type of intermolecular forces does a polar molecule exhibit?

• Hydrogen bonding and ionic interactions.

• Dipole-dipole interactions and London dispersion forces.

• Covalent bonding and metallic bonding.

• Van der Waals forces and hydrogen bonding.

What is the significance of molecular shape in determining intermolecular forces?

• Molecular shape determines the color of the substance.

• Molecular shape affects polarity and the strength of intermolecular interactions.

• Molecular shape has no effect on intermolecular forces.

• Molecular shape only influences the boiling point of a substance.

Define electronegativity.

• The ability of an atom to lose electrons easily.

• The tendency of an atom to attract shared electrons to itself.

• The measure of an atom's size in a molecule.

• The energy required to remove an electron from an atom.

Tags

NGSS.HS-PS1-2

What is the difference between ionic bonding and covalent bonding?

• Ionic bonding involves the sharing of electrons, while covalent bonding involves the transfer of electrons.

• Ionic bonding involves the transfer of protons, while covalent bonding involves the sharing of neutrons.

• Ionic bonding involves the transfer of electrons, while covalent bonding involves the sharing of electrons.

• Ionic bonding occurs only in metals, while covalent bonding occurs only in non-metals.

Tags

NGSS.HS-PS1-3

What is hydrogen bonding?

• A weak interaction between nonpolar molecules.

• A strong type of dipole-dipole interaction that occurs between molecules containing hydrogen bonded to highly electronegative atoms like N, O, or F.

• A type of covalent bond formed between hydrogen and carbon.

• An ionic bond formed between hydrogen and metals.

What are London dispersion forces?

• Strong intermolecular forces that arise from permanent dipoles in atoms or molecules.

• Weak intermolecular forces that arise from temporary dipoles in atoms or molecules, stronger in larger atoms or molecules.

• Intermolecular forces that only occur in ionic compounds.

• Strong forces that hold atoms together in a molecule.

What are dipole-dipole interactions?

• Attractive forces between the positive end of one polar molecule and the negative end of another.

• Repulsive forces between two non-polar molecules.

• Attractive forces between two identical non-polar molecules.

• Interactions that occur between ions and polar molecules.

Hydrogen bonding occurs when hydrogen is bonded to N, O, or F.  Which of the following has hydrogen bonding?

• CBr₄
• NO₂
• H₂S
• NH₃

Does CH₄ have hydrogen bonding?

• yes
• no