Polar Molecules Worksheet
Explore the properties and characteristics of polar and nonpolar molecules, including electronegativity and molecular geometry.
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Polar Molecules: Grade 12 Chemistry
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Read each question carefully and answer to the best of your ability. Show all work for calculations.
1. Which of the following is the primary criterion for determining if a molecule is polar?
The number of atoms in the molecule
The presence of covalent bonds
Unequal sharing of electrons due to difference in electronegativity and asymmetrical geometry
The boiling point of the substance
2. Which of the following molecules is an example of a nonpolar molecule despite having polar bonds?
H2O (water)
NH3 (ammonia)
CCl4 (carbon tetrachloride)
HCl (hydrogen chloride)
3. The measure of an atom's ability to attract electrons in a chemical bond is called .
4. A molecule with an asymmetrical distribution of charge is considered a molecule.
5. All molecules with polar bonds are polar overall.
True
False
6. Explain why water (H2O) is a polar molecule, referencing its molecular geometry and bond polarity.
7. Despite having polar C=O bonds, carbon dioxide (CO2) is a nonpolar molecule. Explain why.