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Chemistry 20 Online
OpenStudy (anonymous):

Polar molecules have an equal number of positive and negative particles

OpenStudy (anonymous):

Not necessarily. the acetate anion (CH3COO-) has a substantial dipole moment, as well as a charge. But quite often polar molecules are uncharged. If you have a sufficiently pedantic instructor that "molecule" refers by definition to uncharged objects, then the statement is true.

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