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Postby 205389184 » Sun Nov 24, 2019 11:55 pm

How can a poly atomic molecule be nonpolar if it’s bonds are polar?

Charisse Vu 1H
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Re: bonds

Postby Charisse Vu 1H » Sun Nov 24, 2019 11:57 pm

It can be nonpolar if the dipole moments cancel each other out. For example, carbon dioxide has polar bonds but the overall molecule is nonpolar. The dipole moments face each other and the molecule is also symmetrical, cancelling each other out and making the molecule nonpolar.

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Re: bonds

Postby Mulin_Li_2J » Sun Nov 24, 2019 11:59 pm

It can be non-polar if dipole moments cancel each other, which basically requires all the atoms surrounding the central atom to be the same element. Or the dipole moments won't match each other.

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