Tuesday
September 16, 2014

Homework Help: Chem answer check

Posted by Rob on Tuesday, November 24, 2009 at 3:59pm.

Do these look right?

What shape does an ammonia (NH3) molecule have?trigonal pyramidal

In a tetrahedral molecule, how many unshared pairs of valence electrons does the central atom have? none

In a polar bond, electrons are? completely transferred

What determines the polarity of a bond? molecular shape only

What determines the polarity of a molecule?electronegativity difference only

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