Chemist _______________________
Date _____________ Section: λ µ σ
Smells
Homework: Polarity Practice
1. Describe, in your own words, how to tell if a molecule is polar or non-polar. You may use pictures to
support your answer.
2. Fill out the table below.
Molecule
Structural Formula + Lone Pairs,
showing overall dipole arrow
Shape Name
(tetrahedral, bent, etc.)
NH 3
Ne
CBr 3 F
1
Polar or Non-polar?
Molecule
Lewis Dot Structure, showing
overall dipole with arrow
Shape
Polar or Non-polar?
SH 2
Br 2
CH 4 O
3. If a molecule has a bent shape, will it automatically be polar? Explain your answer using examples.
4. If a molecule has a pyramidal shape, will it automatically be polar? Explain your answer using
examples.
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5. Write one complete sentence using the words Electronegativity, polar bond, and polar molecule.
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6. Write one complete sentence using the words polar bond, ionic bond, and non-polar bond.
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7. Write one complete sentence using the words tetrahedral, polar bond, and non-polar molecule.
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8. Correct the following sentence so that it is true:
If an atom has an electronegativity greater than 2.1, it will only form polar bonds.
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9. Correct the following sentence so that it is true:
In a polar molecule, the atom with the smaller electronegativity value will attract electrons more
strongly.
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