Posted by Rob on Tuesday, November 24, 2009 at 3:59pm.
What shape does an ammonia (NH3) molecule have?trigonal pyramidal
correct
In a tetrahedral molecule, how many unshared pairs of valence electrons does the central atom have? none
This answer is correct for AB4 type molecules in which the central atom has a valence of 4 and each bond has a element (in this case B) attached.
In a polar bond, electrons are? completely transferred
OK
What determines the polarity of a bond? molecular shape only
No. The polarity of a bond is determined by the electronegativity difference between the two elements forming the bond
What determines the polarity of a molecule?electronegativity difference only
No. The net polarity (net dipole moment) of a molecule is determined by two things:
a. The polarity of individual bonds, AND
b. the symmetry of the molecule.
To have a net dipole moment, a molecule MUST have both (a) individual bond polarity AND (b)the molecule must NOT be symmetrical.
Related Questions
chemistry - The electron pairs in a molecule of NH3 form a tetrahedron. Why does...
chemistry - why are they shaped liked this 1)BF4- is a tetrahedral molecule 2)...
chemistry - using VSEPR THEORY SHOW WHY 1)BF4- is a tetrahedral molecule 2)SF3+ ...
chemistry - using VSEPR THEORY SHOW WHY 1)BF4- is a tetrahedral molecule 2)SF3+ ...
chemistry - using VSEPR THEORY SHOW WHY 1)BF4- is a tetrahedral molecule 2)SF3+ ...
chemistry - using VSEPR THEORY explain why 1)BF4- is a tetrahedral molecule 2)...
chemistry - using VSEPR THEORY explain why 1)BF4- is a tetrahedral molecule 2)...
Chemistry - Molecular Strucutre Can someone check these? Formula - Total # of ...
AP Chemistry - what is the molecular shape of OCCl2 ion? C is the central atom. ...
Chemistry - What is geometry of Ammonia? 1)trigonal planar 2)square planar 3)T-...
For Further Reading
