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Chemistry 121, Winter 2008, LA Tech
Predict the bond angles of molecules from their Lewis structures. (Review)
Molecule
Bonding pairs
unshared pairs
Shape
H2O
two
two
bent
NH3
three
one
Trigonal pyramid
CH2O
three
none
Trigonal planar
CHCl3
four
none
tetrahedral
CH4
four
none
tetrahedral
CCl4
four
none
tetrahedral