What determines if a chemical bond is polar or nonpolar?

Molecular Polarity and Electronegativity

Interactive Video
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Chemistry
•
9th - 10th Grade
•
Hard

Olivia Brooks
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The size of the atoms involved
The difference in electronegativity between the atoms
The number of electrons shared
The temperature of the environment
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is considered a polar molecule?
F2
HCl
O2
N2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the trend of electronegativity across the periodic table?
It fluctuates randomly
It remains constant
It increases as you move towards fluorine
It decreases as you move towards fluorine
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are diatomic molecules like O2 and N2 considered nonpolar?
They have a zero difference in electronegativity
They have high electronegativity values
They are gases at room temperature
They have different electronegativity values
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of molecular symmetry in determining polarity?
Symmetrical molecules are always polar
Symmetrical molecules are always nonpolar
Symmetry has no effect on polarity
Symmetrical molecules have uneven charge distribution
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the molecule CCl4, why is the overall molecule nonpolar despite having polar bonds?
The molecule has a high electronegativity difference
The bonds are nonpolar
The molecule is symmetrical
The molecule is asymmetrical
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do lone pairs affect the shape and polarity of a molecule like NH3?
They push bonded atoms, altering the shape and polarity
They increase the number of bonds
They have no effect on the molecule
They make the molecule symmetrical
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