Homework Help: chemistry

Posted by ashley on Sunday, December 19, 2010 at 7:26pm.

Both H2O and CO2 have 3 atoms, yet one is polar and one is nonpolar. Explain why, using Lewis dot structures in your answer

chemistry - DrBob222, Sunday, December 19, 2010 at 7:30pm
CO2 is linear.
O=C=O
Symmetrical molecules have no net dipole moment.

H2O is angular.
H
|
O-H
Non-symmetrical molecules have a dipole moment if the electronegativity of the central atom is different from the attached atoms.

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