Question 1

The compound BrF3 would be called

Accepted Answer

A)  boron trifluoride.
B)  triboron fluoride.
C)  tri (bromine fluoride) .
D)  tribromine fluoride.
E)  bromine trifluoride.F) None of the above
G) B) and D)

Question 2

The covalent bonding model is most useful in describing which of the following compounds?

Accepted Answer

A)  CoCl2
B)  MgCl2
C)  NiCl2
D)  SCl2
E)  none of the aboveF) All of the above
G) D) and E)

Question 3

A molecule that contains three identical polar bonds to the central atom will be ________.

Accepted Answer

A)  nonpolar if the geometry is planar triangular
B)  polar in all cases
C)  nonpolar in all cases
D)  impossible to tell the polarity
E)  either polar or nonpolar depending on the identity of the atoms bonded to the central atomF) B) and E)
G) C) and E)

Question 4

Which representation of a hydrogen molecule is not correct?

Accepted Answer

A)  H=H
B)  H2
C)  H:H
D)  HH
E)  none of the aboveF) B) and C)
G) D) and E)

Question 5

Covalent compounds form distinct molecules,and therefore may exist as gases,liquids,or solids at room temperature,depending on the characteristics of the compound.

Accepted Answer

A) True 
 B)False

Question 6

The formula for sulfur hexabromide is ________.

Accepted Answer

A)  SF6
B)  SBr6
C)  SBr4
D)  SiBr6
E)  SiB6F) C) and D)
G) A) and E)

Question 7

Draw the Lewis structure for CCl4.What is the molecular geometry of this compound? Is the molecule polar or nonpolar?

Accepted Answer

<img  loading="lazy" src="/assets/images/blured-textbook.svg" class="d-inline m-1" alt="blured image" width="139" height="30"> tetrahedr...

Question 8

A section of the Periodic Table containing main group elements is shown.Which bond would be least polar?

Accepted Answer

A)  WX
B)  YZ
C)  WZ
D)  WY
E)  cannot be determined without more specific informationF) D) and E)
G) B) and D)

Question 9

Consider the molecule SiCl4.The electronegativity values for Si and Cl are 1.8 and 3.0,respectively.Based on these values and on consideration of molecular geometry,the Si-Cl bond is ________ and the molecule is ________.

Accepted Answer

A)  polar; polar
B)  nonpolar; nonpolar
C)  polar; nonpolar
D)  nonpolar; polar
E)  none of the aboveF) All of the above
G) B) and E)

Question 10

A triple bond involves the sharing of ________ pairs of electrons between the atoms

Accepted Answer

A)  1
B)  2
C)  3
D)  4
E)  5F) A) and E)
G) B) and D)

Question 11

Which element listed is the least electronegative?

Accepted Answer

A)  nitrogen
B)  hydrogen
C)  oxygen
D)  fluorine
E)  chlorineF) A) and B)
G) A) and E)

Question 12

Match the following.
-phosphorus trichloride

Accepted Answer

A)  OF2
B)  BrF5
C)  CCI4
D)  N2O4
E)  SF6F) COG) IClH) SO2I) CH4J) IF7K) PCI3L) NH3M) I) and J)
N) E) and I)

Question 13

A chemical bond formed when two atoms share one pair of electrons is a ________ bond; it is best described as ________.

Accepted Answer

A)  double; covalent
B)  double; ionic
C)  single; covalent
D)  single; ionic
E)  triple; covalentF) A) and D)
G) B) and C)

Question 14

The number of valence electrons in the acetic acid molecule (CH3CO2H) is ________.

Accepted Answer

A)  0
B)  8
C)  16
D)  24
E)  32F) A) and E)
G) None of the above

Question 15

A chemical bond formed when two atoms share three pairs of electrons is a ________ bond; it is best described as ________.

Accepted Answer

A)  double; covalent
B)  single; covalent
C)  triple; covalent
D)  double; ionic
E)  triple; ionicF) A) and B)
G) A) and C)

Exam 4: Molecular Compounds

The compound BrF₃ would be called

Correct Answer
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Which element listed is the least electronegative?

Correct Answer
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The number of valence electrons in the acetic acid molecule (CH₃CO₂H) is ________.

Correct Answer
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A chemical bond formed when two atoms share three pairs of electrons is a bond; it is best described as .

Correct Answer
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A section of the Periodic Table containing main group elements is shown.Which bond would be least polar?

Correct Answer
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The covalent bonding model is most useful in describing which of the following compounds?

Correct Answer
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The formula for sulfur hexabromide is ________.

Correct Answer
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A molecule that contains three identical polar bonds to the central atom will be ________.

Correct Answer
verified

Covalent compounds form distinct molecules,and therefore may exist as gases,liquids,or solids at room temperature,depending on the characteristics of the compound.

Correct Answer
verified

A chemical bond formed when two atoms share one pair of electrons is a bond; it is best described as .

Correct Answer
verified

Draw the Lewis structure for CCl₄.What is the molecular geometry of this compound? Is the molecule polar or nonpolar?

Correct Answer
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tetrahedr...
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Match the following. -phosphorus trichloride

Correct Answer
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Which representation of a hydrogen molecule is not correct?

Correct Answer
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A triple bond involves the sharing of ________ pairs of electrons between the atoms

Correct Answer
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Consider the molecule SiCl₄.The electronegativity values for Si and Cl are 1.8 and 3.0,respectively.Based on these values and on consideration of molecular geometry,the Si-Cl bond is and the molecule is .

Correct Answer
verified

Exam 4: Molecular Compounds

The compound BrF3 would be called

Correct AnswerverifiedShow Answer

Which element listed is the least electronegative?

Correct AnswerverifiedShow Answer

The number of valence electrons in the acetic acid molecule (CH3CO2H) is ________.

Correct AnswerverifiedShow Answer

A chemical bond formed when two atoms share three pairs of electrons is a ________ bond; it is best described as ________.

Correct AnswerverifiedShow Answer

A section of the Periodic Table containing main group elements is shown.Which bond would be least polar?

Correct AnswerverifiedShow Answer

The covalent bonding model is most useful in describing which of the following compounds?

Correct AnswerverifiedShow Answer

The formula for sulfur hexabromide is ________.

Correct AnswerverifiedShow Answer

A molecule that contains three identical polar bonds to the central atom will be ________.

Correct AnswerverifiedShow Answer

Covalent compounds form distinct molecules,and therefore may exist as gases,liquids,or solids at room temperature,depending on the characteristics of the compound.

Correct AnswerverifiedShow Answer

A chemical bond formed when two atoms share one pair of electrons is a ________ bond; it is best described as ________.

Correct AnswerverifiedShow Answer

Draw the Lewis structure for CCl4.What is the molecular geometry of this compound? Is the molecule polar or nonpolar?

Correct Answerverified tetrahedr...View AnswerShow Answer

Match the following. -phosphorus trichloride

Correct AnswerverifiedShow Answer

Which representation of a hydrogen molecule is not correct?

Correct AnswerverifiedShow Answer

A triple bond involves the sharing of ________ pairs of electrons between the atoms

Correct AnswerverifiedShow Answer

Consider the molecule SiCl4.The electronegativity values for Si and Cl are 1.8 and 3.0,respectively.Based on these values and on consideration of molecular geometry,the Si-Cl bond is ________ and the molecule is ________.

Correct AnswerverifiedShow Answer

The compound BrF₃ would be called

Correct Answer
verified

Correct Answer
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The number of valence electrons in the acetic acid molecule (CH₃CO₂H) is ________.

Correct Answer
verified

A chemical bond formed when two atoms share three pairs of electrons is a bond; it is best described as .

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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A chemical bond formed when two atoms share one pair of electrons is a bond; it is best described as .

Correct Answer
verified

Draw the Lewis structure for CCl₄.What is the molecular geometry of this compound? Is the molecule polar or nonpolar?

Correct Answer
verified
tetrahedr...
View Answer

Correct Answer
verified

Correct Answer
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Correct Answer
verified

Consider the molecule SiCl₄.The electronegativity values for Si and Cl are 1.8 and 3.0,respectively.Based on these values and on consideration of molecular geometry,the Si-Cl bond is and the molecule is .

Correct Answer
verified