Polar and Nonpolar Molecules Worksheet
This worksheet explores the concepts of polar and nonpolar molecules, including their properties, bonding, and intermolecular forces, suitable for Grade 12 Chemistry students.
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Polar and Nonpolar Molecules
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Read each question carefully and provide thorough answers. Show all your work for calculations.
1. Which of the following molecules is considered nonpolar?
HCl
H₂O
CO₂
NH₃
2. What type of intermolecular force is primarily responsible for the high boiling point of water?
London Dispersion Forces
Dipole-Dipole Interactions
Hydrogen Bonding
Ionic Bonding
3. A molecule with an asymmetrical distribution of electron density is considered a molecule.
4. Nonpolar molecules typically dissolve well in solvents.
5. The electronegativity difference between two atoms in a bond determines the of the bond.
6. All molecules containing polar bonds are polar molecules.
True
False
7. London Dispersion Forces are present in all types of molecules, both polar and nonpolar.
True
False
8. Explain the concept of electronegativity and how it contributes to the polarity of a chemical bond.
9. Describe the difference between a polar bond and a polar molecule. Provide an example for each.
Use the words below to complete the sentences.
10. The principle that explains why polar substances dissolve in polar solvents is known as .
11. A nonpolar molecule typically has a molecular geometry, leading to cancellation of bond dipoles.
12. The overall polarity of a molecule is quantified by its .