Polar and Nonpolar Molecules Worksheet
Explore the concepts of polar and nonpolar molecules, electronegativity, and their impact on molecular properties and interactions.
Includes
Standards
Topics
Polar and Nonpolar Molecules
Name:
Date:
Score:
Read each question carefully and answer to the best of your ability. Show all your work for calculations.
1. Which of the following best describes a polar molecule?
A molecule with equal sharing of electrons and no net dipole moment.
A molecule with unequal sharing of electrons, resulting in partial positive and negative charges.
A molecule composed only of nonmetal atoms.
A molecule that readily dissolves in oil.
2. Which of the following molecules is generally considered nonpolar?
H2O (water)
CO2 (carbon dioxide)
NH3 (ammonia)
HCl (hydrogen chloride)
1. The ability of an atom to attract shared electrons in a covalent bond is called .
2. In a polar covalent bond, electrons are shared between two atoms.
3. The principle that explains why polar substances dissolve other polar substances is often summarized as " ."
1. Explain the difference between a polar covalent bond and a nonpolar covalent bond.
2. Describe how molecular geometry can influence whether a molecule is polar or nonpolar, even if it contains polar bonds. Provide an example.
1. All molecules containing oxygen are polar.
True
False
2. Nonpolar molecules typically have higher boiling points than polar molecules of similar size.
True
False
Match each term on the left with its definition on the right.
1. Dipole moment
a. The measure of an atom's ability to attract electrons in a bond
2. Electronegativity
b. A molecule with a symmetrical distribution of electron density
3. Nonpolar molecule
c. A quantitative measure of the polarity of a molecule's charge separation