Polar and Nonpolar Molecules Worksheet
A Grade 11 Chemistry worksheet exploring the concepts of polar and nonpolar molecules, including electronegativity, molecular geometry, and intermolecular forces.
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Standards
Topics
Polar and Nonpolar Molecules
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Read each question carefully and answer to the best of your ability. Show all work where applicable.
1. Which of the following is the primary factor determining whether a molecule is polar or nonpolar?
Atomic mass
Electronegativity difference between bonded atoms
Number of valence electrons
Boiling point of the substance
2. A molecule with a symmetrical geometry and identical atoms bonded to the central atom is typically:
Polar
Nonpolar
Ionic
Metallic
3. The unequal sharing of electrons in a covalent bond creates a dipole moment, leading to a molecule.
4. In a nonpolar molecule, the vector sum of all individual bond dipoles is equal to .
5. Water is a molecule due to its bent molecular geometry and the difference in electronegativity between oxygen and hydrogen.
6. Carbon tetrachloride (CCl4) is a polar molecule because it contains polar C-Cl bonds.
True
False
7. London Dispersion Forces are the strongest type of intermolecular force present in nonpolar molecules.
True
False
8. Explain how molecular geometry can influence the overall polarity of a molecule, even if it contains polar bonds. Provide an example.
Match each term with its definition.
9. Electronegativity
a. An attractive force between molecules
10. Dipole moment
b. A measure of an atom's ability to attract electrons in a bond
11. Intermolecular forces
c. A quantitative measure of the polarity of a bond or molecule
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