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Chemistry 121, Winter 2008, LA Tech
Molecular Shape and Polarity (Review)
Molecule
Bonding pairs and unshared pairs
Electron pair distribution
Polarity
H2O
four
asymmetric
polar
NH3
four
asymmetric
polar
CH2O
three
asymmetric
polar
CHCl3
four
asymmetric
polar
CH4
four
symmetric
Non-polar
CCl4
four
symmetric
Non-polar