Question 1

____ Atom(s)  of lithium will combine with _____atom(s)  of fluoride to make lithium fluoride.

Accepted Answer

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

Question 2

The total number of electrons in the covalent bonds of CH4 is ____.

Accepted Answer

A)   4
B)   6
C)   8
D)   12
E)   None of the above.F) B) and C)
G) A) and E)

Question 3

In the compound CH3Cl, the C atom has an electronegativity of 2.5 while the Cl atom has an electronegativity of 2.9. Given this information, the differences in the electronegativity for the C and Cl atom will result in the C-Cl bond being nonpolar covalent.

Accepted Answer

A) True 
 B)False

Question 4

The following compound is a(n)  _____compound: MgCl2

Accepted Answer

A)   polar covalent
B)   nonpolar covalent
C)   ionic
D)   All of the above.
E)   None of the above.F) B) and D)
G) D) and E)

Question 5

Ammonia is the common name for NH4+.

Accepted Answer

A) True 
 B)False

Question 6

The formula sodium iodide is NaI2.

Accepted Answer

A) True 
 B)False

Question 7

The two atoms in Cl2 are joined together by an ionic bond.

Accepted Answer

A) True 
 B)False

Question 8

In the compound AlN, the aluminum atom donates ____ electron(s)  to the nitrogen atom so that the nitrogen atom can have an octet.

Accepted Answer

A)   one
B)   two
C)   three
D)   four
E)   None of the above.F) C) and D)
G) D) and E)

Question 9

The formula calcium oxide is CaO2.

Accepted Answer

A) True 
 B)False  False

Question 10

CH4 has the tetrahedral shape.

Accepted Answer

A) True 
 B)False

Question 11

There are a maximum of six electrons in the second quantum shell.

Accepted Answer

A) True 
 B)False

Question 12

____ Atom(s)  of aluminum will combine with _____atom(s)  of chlorine to make aluminum chloride.

Accepted Answer

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

Question 13

The number of valence electrons for carbon is ___.

Accepted Answer

A)   2
B)   3
C)   4
D)   5
E)   6F) B) and D)
G) A) and E)

Question 14

In the compound CH3Cl, the C atom has an electronegativity of 2.5 while the H atom has an electronegativity of 2.1. Given this information, the differences in the electronegativity for the C and H atom will result in the C-H bond being nonpolar covalent.

Accepted Answer

A) True 
 B)False

Question 15

The following compound is a(n)  _____compound: CH4

Accepted Answer

A)   polar covalent
B)   nonpolar covalent
C)   ionic
D)   All of the above.
E)   None of the above.F) B) and D)
G) B) and E)

Question 16

NH3 has the bent shape.

Accepted Answer

A) True 
 B)False

Question 17

The formula for potassium nitride is K3N.

Accepted Answer

A) True 
 B)False

Question 18

Valence electrons are ___.

Accepted Answer

A)   the outermost quantum shell of an atom
B)   the electrons contained in an atom's valence shell
C)   notations that show only the valence electrons of an atom
D)   All of the above.
E)   None of the above.F) All of the above
G) B) and C) B

Question 19

Ionic compounds have low boiling points.

Accepted Answer

A) True 
 B)False

Question 20

The name for MgI2 is magnesium iodide.

Accepted Answer

A) True 
 B)False  True

Exam 3: Chemicals and Compounds

____ Atom(s) of lithium will combine with _____atom(s) of fluoride to make lithium fluoride.

Correct AnswerverifiedShow Answer

The total number of electrons in the covalent bonds of CH4 is ____.

Correct AnswerverifiedShow Answer

In the compound CH3Cl, the C atom has an electronegativity of 2.5 while the Cl atom has an electronegativity of 2.9. Given this information, the differences in the electronegativity for the C and Cl atom will result in the C-Cl bond being nonpolar covalent.

Correct AnswerverifiedShow Answer

The following compound is a(n) _____compound: MgCl2

Correct AnswerverifiedShow Answer

Ammonia is the common name for NH4+.

Correct AnswerverifiedShow Answer

The formula sodium iodide is NaI2.

Correct AnswerverifiedShow Answer

The two atoms in Cl2 are joined together by an ionic bond.

Correct AnswerverifiedShow Answer

In the compound AlN, the aluminum atom donates ____ electron(s) to the nitrogen atom so that the nitrogen atom can have an octet.

Correct AnswerverifiedShow Answer

The formula calcium oxide is CaO2.

Correct AnswerverifiedFalse

CH4 has the tetrahedral shape.

Correct AnswerverifiedShow Answer

There are a maximum of six electrons in the second quantum shell.

Correct AnswerverifiedShow Answer

____ Atom(s) of aluminum will combine with _____atom(s) of chlorine to make aluminum chloride.

Correct AnswerverifiedShow Answer

The number of valence electrons for carbon is ___.

Correct AnswerverifiedShow Answer

In the compound CH3Cl, the C atom has an electronegativity of 2.5 while the H atom has an electronegativity of 2.1. Given this information, the differences in the electronegativity for the C and H atom will result in the C-H bond being nonpolar covalent.

Correct AnswerverifiedShow Answer

The following compound is a(n) _____compound: CH4

Correct AnswerverifiedShow Answer

NH3 has the bent shape.

Correct AnswerverifiedShow Answer

The formula for potassium nitride is K3N.

Correct AnswerverifiedShow Answer

Valence electrons are ___.

Correct AnswerverifiedB

Ionic compounds have low boiling points.

Correct AnswerverifiedShow Answer

The name for MgI2 is magnesium iodide.

Correct AnswerverifiedTrue

Atom(s) of lithium will combine with _atom(s) of fluoride to make lithium fluoride.

Correct Answer
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The total number of electrons in the covalent bonds of CH₄ is ____.

Correct Answer
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In the compound CH₃Cl, the C atom has an electronegativity of 2.5 while the Cl atom has an electronegativity of 2.9. Given this information, the differences in the electronegativity for the C and Cl atom will result in the C-Cl bond being nonpolar covalent.

Correct Answer
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The following compound is a(n) _____compound: MgCl₂

Correct Answer
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Ammonia is the common name for NH₄⁺.

Correct Answer
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The formula sodium iodide is NaI₂.

Correct Answer
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The two atoms in Cl₂ are joined together by an ionic bond.

Correct Answer
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Correct Answer
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The formula calcium oxide is CaO₂.

Correct Answer
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False

CH₄ has the tetrahedral shape.

Correct Answer
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Correct Answer
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Atom(s) of aluminum will combine with _atom(s) of chlorine to make aluminum chloride.

Correct Answer
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Correct Answer
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In the compound CH₃Cl, the C atom has an electronegativity of 2.5 while the H atom has an electronegativity of 2.1. Given this information, the differences in the electronegativity for the C and H atom will result in the C-H bond being nonpolar covalent.

Correct Answer
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The following compound is a(n) _____compound: CH₄

Correct Answer
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NH₃ has the bent shape.

Correct Answer
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The formula for potassium nitride is K₃N.

Correct Answer
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Correct Answer
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B

Correct Answer
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The name for MgI₂ is magnesium iodide.

Correct Answer
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True