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Determine the hybridization about each interior atom in the following structure.Sketch the three-dimensional structure and label the interior atoms with their corresponding hybridization. CH2CHCCCH3

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The sketch should show all of the approp...

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Give the approximate bond angle for a molecule with a linear shape.


A) 109.5°
B) 180°
C) 120°
D) 105°
E) 60°

F) A) and B)
G) D) and E)

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B

Place the following in order of decreasing X-A-X bond angle,where A represents the central atom and X represents the outer atoms in each molecule. N2O NCl3 NO2


A) NCl3 > NO2⁻ > N2O
B) NO2⁻ > N2O > NCl3
C) N2O > NO2⁻ > NCl3
D) NCl3 > N2O > NO2
E) N2O > NCl3 > NO2

F) C) and D)
G) A) and D)

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How many of the following molecules have sp2 hybridization on the central atom? HCN SO2 OCl2 XeCl2


A) 4
B) 3
C) 2
D) 1
E) 0

F) A) and E)
G) A) and B)

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The VSEPR model predicts the H-N-H bond angle in NH2- to be


A) 60°.
B) 90°.
C) less than 109.5° but greater than 90°.
D) 109.5°.

E) A) and D)
F) None of the above

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Determine the electron geometry (eg) and molecular geometry (mg) of CF3+1.


A) eg = tetrahedral, mg = tetrahedral
B) eg = trigonal pyramidal, mg = trigonal pyramidal
C) eg = bent, mg = bent
D) eg = trigonal planar, mg = trigonal planar
E) eg = tetrahedral, mg = trigonal planar

F) All of the above
G) A) and B)

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Give the hybridization for the Br in BrF5.


A) sp3d2
B) sp3d
C) sp3
D) sp2
E) sp

F) None of the above
G) A) and B)

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Give the approximate bond angle for a molecule with a tetrahedral shape.


A) 109.5°
B) 200°
C) 120°
D) 107°
E) 45°

F) A) and D)
G) C) and E)

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Using the VSEPR model,the molecular geometry of the central atom in ClO3- is


A) linear.
B) trigonal planar.
C) tetrahedral.
D) bent.
E) trigonal pyramidal.

F) B) and E)
G) C) and E)

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What is the molecular geometry of BrF4 -?


A) seesaw
B) square planar
C) square pyramidal
D) pyramidal
E) trigonal bipyramidal

F) B) and E)
G) A) and E)

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B

How many of the following molecules have sp3d hybridization on the central atom? CCl4 BrF5 AsF5 BrF3


A) 2
B) 0
C) 4
D) 1
E) 3

F) All of the above
G) A) and E)

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A

Use molecular orbital theory to determine whether He22⁺ or He2⁺ is more stable.Draw the molecular orbital diagram for each and explain your answer.

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The MO diagram should show He22⁺ with 2 el...

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Using the VSEPR model,the molecular geometry of the central atom in NH4+ is


A) linear.
B) trigonal planar.
C) tetrahedral.
D) bent.
E) trigonal pyramidal.

F) B) and D)
G) C) and E)

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Match the following.

Premises
CH2F2
BeF2
sp3d
sp3d2
sp3
BCl3
SF4
sp
XeCl4
sp2
Responses
see-saw molecular geometry
trigonal bipyramidal
trigonal planar
sp hybridized central atom
tetrahedral
polar
octahedral electron geometry
sp2 hybridized central atom
polar, but contains no polar bonds
linear
octahedral
nonpolar, but contains a polar covalent bond

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see-saw molecular geometry
trigonal bipyramidal
trigonal planar
sp hybridized central atom
tetrahedral
polar
octahedral electron geometry
sp2 hybridized central atom
polar, but contains no polar bonds
linear
octahedral
nonpolar, but contains a polar covalent bond

Choose the compound below that contains at least one polar covalent bond,but is nonpolar.


A) GeH2Br2
B) SBr2
C) AsBr5
D) CBr2Cl2
E) All of the above are nonpolar and contain a polar covalent bond.

F) C) and D)
G) A) and E)

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Identify the number of electron groups around a molecule with sp hybridization.


A) 1
B) 2
C) 3
D) 4
E) 5

F) A) and B)
G) A) and D)

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If an oil tanker leaks oil in the ocean,where does the oil go?


A) The oil floats on the seawater; water is polar and oil is nonpolar.
B) The oil mixes with the water.
C) The oil sinks below the seawater; water is nonpolar and oil is polar.
D) The oil floats on the seawater; water is nonpolar and oil is polar.
E) The oil sinks below the seawater; water is polar and oil is nonpolar.

F) A) and D)
G) None of the above

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Use the molecular orbital diagram shown to determine which of the following is most stable. Use the molecular orbital diagram shown to determine which of the following is most stable.   A)  C<sub>2</sub><sup>2</sup>⁺ B)  N<sub>2</sub><sup>2</sup>⁺ C)  B<sub>2</sub> D)  C<sub>2</sub><sup>2</sup>⁻ E)  B<sub>2</sub><sup>2</sup>⁺


A) C22
B) N22
C) B2
D) C22
E) B22

F) A) and E)
G) A) and D)

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Determine the molecular geometry about each interior atom in the following structure.Sketch the three-dimensional structure and label the interior atoms with the corresponding molecular geometry. CH2CHCCCH3

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The sketch should show all of the approp...

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Determine the electron geometry (eg) and molecular geometry (mg) of BH3.


A) eg = trigonal planar, mg = trigonal planar
B) eg = tetrahedral, mg = trigonal planar
C) eg = tetrahedral, mg = trigonal pyramidal
D) eg = trigonal planar, mg = tetrahedral
E) eg = trigonal bipyramidal, mg = trigonal bipyramidal

F) None of the above
G) A) and E)

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