
Polar vs. Nonpolar
Flashcard
•
Chemistry
•
10th - 12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a polar molecule?
Back
A polar molecule is one that has a net dipole moment due to the presence of polar bonds that do not cancel out, often because of an asymmetrical arrangement of atoms.
2.
FLASHCARD QUESTION
Front
What is a nonpolar molecule?
Back
A nonpolar molecule is one that does not have a net dipole moment, typically because it has symmetrical arrangements of atoms or all atoms bonded to the central atom are the same.
3.
FLASHCARD QUESTION
Front
What determines the polarity of a molecule?
Back
The polarity of a molecule is determined by the shape of the molecule and the electronegativity differences between the atoms involved.
4.
FLASHCARD QUESTION
Front
What role do lone pairs play in molecular polarity?
Back
Lone pairs can create an asymmetrical shape in a molecule, contributing to its polarity by affecting the distribution of electron density.
5.
FLASHCARD QUESTION
Front
How does electronegativity affect molecular polarity?
Back
Electronegativity is the ability of an atom to attract electrons. A significant difference in electronegativity between bonded atoms can lead to polar bonds, contributing to overall molecular polarity.
6.
FLASHCARD QUESTION
Front
Where are the most electronegative elements located on the Periodic Table?
Back
The most electronegative elements are located in the upper right corner of the Periodic Table, excluding the Noble gases.
7.
FLASHCARD QUESTION
Front
What is the significance of molecular shape in determining polarity?
Back
Molecular shape affects how dipoles from polar bonds add up; if the shape is symmetrical, the molecule may be nonpolar, while an asymmetrical shape often results in a polar molecule.
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