CHEM TEST 3

Question 1

:F:Be:F: hybridization
– –

Answer 1

Sp, linear, 180 degrees

Question 2

H H Hybridization
!
B
/ \
H H

Answer 2

Sp2, trigonal planar, 120 degrees

Question 3

. H Hybridization
. |
.H—– C—-H
|
. H

Answer 3

Sp3 Tetrahedral 109.5 degrees

Question 4

what is hybridization

Answer 4

a mixture of two orbitals (s+p)

Question 5

(true or false) nonpolar is asymetrical

Answer 5

false

Question 6

(true or false) nonpolar is symetrical

Answer 6

true

Question 7

(true or false) polar is asymetrical

Answer 7

true

Question 8

(true or false) polar is symetrical

Answer 8

false

Question 9

0.5 and up means it is

Answer 9

polar

Question 10

0.5 and down means it is

Answer 10

nonpolar

Question 11

shape affects

Answer 11

the polarity of a molecule even though atoms may have differenct electronegativety of less than 0.5, the shape may cancel out the affects

Question 12

what is the polarity and bonds of CO2

Answer 12

nonpolar with polar bonds

Question 13

what 2 shapes are always nonpolar

Answer 13

tetrahedral and trigonal planar

Question 14

what are the 2 shapes that are always polar

Answer 14

pyramidal and bent

Question 15

polarity is

Answer 15

an unequal distribution of charge (-, +)

Question 16

nonpolar is

Answer 16

an equal distribution of charge (+, +)

Question 17

CH4 is

Answer 17

a tetrahedral and nonpolar

Question 18

BH3 is

Answer 18

a trigonal planar and nonpolar

Question 19

NH3 is

Answer 19

pyramidal and polar

Question 20

H2O is

Answer 20

bent and polar

Question 21

BeF2 is

Answer 21

linear and nonpolar

Question 22

ClH is

Answer 22

linear and polar

Question 23

VSEPR

Answer 23

valance shell electron pair repulsion theory