CHEM TEST 3 Flashcards
:F:Be:F: hybridization
– –
Sp, linear, 180 degrees
H H Hybridization
!
B
/ \
H H
Sp2, trigonal planar, 120 degrees
. H Hybridization
. |
.H—– C—-H
|
. H
Sp3 Tetrahedral 109.5 degrees
what is hybridization
a mixture of two orbitals (s+p)
(true or false) nonpolar is asymetrical
false
(true or false) nonpolar is symetrical
true
(true or false) polar is asymetrical
true
(true or false) polar is symetrical
false
0.5 and up means it is
polar
0.5 and down means it is
nonpolar
shape affects
the polarity of a molecule even though atoms may have differenct electronegativety of less than 0.5, the shape may cancel out the affects
what is the polarity and bonds of CO2
nonpolar with polar bonds
what 2 shapes are always nonpolar
tetrahedral and trigonal planar
what are the 2 shapes that are always polar
pyramidal and bent
polarity is
an unequal distribution of charge (-, +)
nonpolar is
an equal distribution of charge (+, +)
CH4 is
a tetrahedral and nonpolar
BH3 is
a trigonal planar and nonpolar
NH3 is
pyramidal and polar
H2O is
bent and polar
BeF2 is
linear and nonpolar
ClH is
linear and polar
VSEPR
valance shell electron pair repulsion theory
