Chapter 4: Polar Molecules
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Molecular polarity depends on
1. Shape of the molecule 2. Presence of polar covalent bonds or lone pairs Ex: H₂O - electrons are displaced AWAY from the less electronegative atom (H) and TOWARD the more electronegative atom (O) - Net polarity points between the two O-H bonds
Molecular polarity is determined by finding the _________________
Sum of all individual bond polarities and lone pair contributions in the molecule
True or false: entire molecules can be polar
True - Occurs when electrons are atteacted more strongly to one part of the molecule than to the other - Represented by an arrow pointing in the direction in which electrons are displaced (more negative side)
