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Worksheet 16: Molecular structures and polarity Topic 4

Set A: Molecular shapes and polarity Objective: To test your ability to determine shape and
polarity of molecular structures

Structures of molecular substances are given below. For each structure, indicate the correct information.
For bond polarity, write “polar covalent” or “nonpolar covalent”.
For molecular polarity, write “polar molecule” or “nonpolar molecule”
For symmetry, write “symmetrical” or “asymmetrical”
For molecular shape, indicate “linear” or “pyramidal” or “tetrahedral” or “bent”.

1. H – I Bond polarity: ______________________ Symmetry: _________________
I I Teacher Preview Copy
Molecular shape: _____________
Molecular polarity:___________________

2. F Bond polarity: ______________________ Symmetry: _________________
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F – C – F Molecular polarity:___________________ Molecular shape: _____________

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F

3. Br – Br Bond polarity: ______________________ Symmetry: _________________

Molecular polarity:___________________ Molecular shape: _____________

4. Cl Bond polarity: ______________________ Symmetry: _________________

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H – C – Cl Molecular polarity:___________________ Molecular shape: _____________

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H

5. O = O Bond polarity: ______________________ Symmetry: _________________

Molecular polarity:___________________ Molecular shape: _____________

Bond polarity: ______________________ Symmetry: _________________
6. O = C = O Molecular shape: _____________
Molecular polarity:___________________

H Br
7. H – C – C – Br Bond polarity: ______________________ Symmetry: _________________

I I
H H Molecular polarity:___________________ Molecular shape: _____________

8. S Bond polarity: ______________________ Symmetry: _________________

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H H Molecular polarity:___________________ Molecular shape: _____________

9 . H Bond polarity: ______________________ Symmetry: _________________

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H – C – H Molecular polarity:___________________ Molecular shape: _____________
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H
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