Grade 9 Science: Intermolecular Forces
This worksheet covers intermolecular forces, including hydrogen bonding, dipole-dipole interactions, and London dispersion forces, and their effects on physical properties.
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Intermolecular Forces Worksheet
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Read each question carefully and answer to the best of your ability. Show all work for calculations.
1. Which type of intermolecular force is present in all molecules?
Hydrogen bonding
Dipole-dipole interactions
London dispersion forces
Ionic bonds
2. Which of the following molecules can form hydrogen bonds?
CH4
H2S
NH3
CO2
3. The strength of London dispersion forces increases with increasing of a molecule.
4. Dipole-dipole interactions occur between molecules.
5. Hydrogen bonding is a special type of interaction.
6. Explain why water has a higher boiling point than methane (CH4), even though water has a smaller molar mass.
7. Intermolecular forces are stronger than intramolecular forces.
True
False
8. London dispersion forces are the only intermolecular forces present in nonpolar molecules.
True
False
Match each intermolecular force with its description.
9. Hydrogen bonding
a. Occurs between any two molecules due to temporary induced dipoles.
10. Dipole-dipole interactions
b. Occurs between polar molecules.
11. London dispersion forces
c. Strongest type of intermolecular force involving H bonded to N, O, or F.
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