Question 1 How many lone pairs are on the central atom of XeF 4 ? 3 No Lone Pair

Question

Question 1

How many lone pairs are on the central atom of XeF4?

3

No Lone Pairs

4

1

2

10 points

Question 2

When drawing VSEPR structures, the second step is to _____?

Draw the correct Lewis structure for the molecule or ion.

Count the total number of valence electrons in the molecule or ion.

Count up the total number of regions of electron density surrounding the central atom.

None of these are correct.

Arrange the regions of electron density in one of the five arrangements.

10 points

Question 3

Trans-diamminedichloroplatinum(II) is also known as Blank 1 .

10 points

Question 4

When generating Lewis structures, if the central atom does not have an octet of electrons, you should convert electron pairs on the non-central atoms to double or Blank 1 bonds until the central atom has an octect.

10 points

Question 5

What is the molecular shape/VSEPR structure of XeF3+?

Square Planar

Trigonal Bipyramidal

T-Shaped

Square Pyramidal

See-saw

10 points

Question 6

The Lewis structure of PF5 has _____ lone pairs on the central atom?

2

5

1

3

0

10 points

Question 7

What is the molecular shape/VSEPR structure of OF2?

See-saw

Linear

Trigonal Bipyramidal

Tetrahedral

Bent

10 points

Question 8

Afer completing Experiment # 10, you will be able to build three-dimensional models of common organic molecules.

True

False

10 points

Question 9

The common chemical name for C10H20O is ______?

Xylene

Methanol

None of these

Methane

Xylane

10 points

Question 10

The SF6 molecule is polar.

True

False

10 points

Question 11

When drawing Lewis structures, the first step is to _____?

Count the total number of valence electrons in the molecule or ion.

None of these are correct.

Surround each of the non-central atoms with an octet of electrons.

Place one bond between the central atom and each non-central atom.

Draw a skeletal structure.

10 points

Question 12

The PCl3 molecule is nonpolar.

True

False

10 points

Question 13

VSEPR theory must be used to predic the three-dimensional shape of a molecule or ion.

True

False

10 points

Question 14

What is the molecular shape/VSEPR structure of ICl4-1 ?

Trigonal Bipyramidal

T-Shaped

Square Planar

Square Pyramidal

See-saw

10 points

Question 15

The Lewis structure of CF4 has _____ lone pairs on the central atom?

0

4

1

2

3

10 points

Question 16

When generating Lewis structures, B is an exception to the octet rule and is surrounded by a maximum of Blank 1 electrons.

10 points

Question 17

What is the molecular shape/VSEPR structure of SF6?

Octahedral

Linear

Tetrahedral

See-saw

Bent

10 points

Question 18

When drawing Lewis structures, the third step is _____?

Surround each of the non-central atoms with an octet of electrons.

None of these are correct.

Place one bond between the central atom and each non-central atom.

Count the total number of valence electrons in the molecule or ion.

Draw a skeletal structure.

10 points

Question 19

When the vector sum of bond dipoles is not zero, then the molecule is nonpolar.

True

False

A.

3

B.

No Lone Pairs

C.

4

D.

1

E.

2

Explanation / Answer

1.E

2

5.C

6.E

8

9.B

10.Flase

11.A

12.Flase

13.True

14.C

15.A

16.

17.A

18.D

19.True

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