#### Answer

a) polar
b) nonpolar

#### Work Step by Step

a) The structure is a square pyramidal and thus there is a net dipole
b) The structure is a trigonal planar and thus the dipole moments will all cancel out to yield a net dipole of zero.

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Published by
McGraw-Hill Publishing Company

ISBN 10:
0078021529

ISBN 13:
978-0-07802-152-7

a) polar
b) nonpolar

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