HS-PS1-3: Intermolecular Forces and Ionic Compounds

Which of the following is the primary force responsible for holding ionic compounds together?

• Covalent bonding

• Hydrogen bonding

• Electrostatic attraction

• Van der Waals forces

Tags

NGSS.HS-PS1-3

Which type of intermolecular force is the strongest?

• London dispersion forces

• Dipole-dipole interactions

• Hydrogen bonding

• Van der Waals forces

Which property is most affected by the strength of intermolecular forces in a substance?

• Atomic mass

• Density

• Boiling point

• Molar volume

Which type of solid has the highest melting point due to strong electrostatic forces?

• Molecular solids

• Ionic solids

• Metallic solids

• Covalent network solids

Why do metals conduct electricity in the solid state?

• They contain free-moving ions

• They have a "sea" of delocalized electrons

• They have weak intermolecular forces

• They form covalent bonds

What happens to the strength of London dispersion forces as molecular mass increases?

• It decreases

• It stays the same

• It increases

• It becomes unpredictable

Which of the following explains why water has a higher boiling point than methane (CH₄)?

• Water molecules form hydrogen bonds

• Methane molecules are more polar

• Water molecules have weaker forces

• Methane is an ionic compound

Which statement correctly describes ionic compounds?

• They have low melting points

• They conduct electricity in solid form

• They dissolve easily in nonpolar solvents

• They form crystal lattice structures due to strong electrostatic forces

Tags

NGSS.HS-PS1-3

Why do noble gases have low boiling points?

• They have weak intermolecular forces

• They form ionic bonds

• They have high densities

• They have strong dipole-dipole forces

What type of bonding is found in diamond, giving it extreme hardness?

• Ionic

• Metallic

• Covalent network

• Hydrogen bonding