Question 1

In the reaction below, label each reactant as a nucleophile or an electrophile.
CH3COO- + O2S(OCH3)2 → CH3COOCH3 + CH3SO4-

Accepted Answer

CH₃COO^-,...

Question 2

Provide the electron configuration of phosphorus.

Accepted Answer

The answer of Provide the electron configuration of phosphorus....

Question 3

Atoms with the same number of protons but different numbers of neutrons are called ________.

Accepted Answer

The answer of Atoms with the same number of protons...

Question 4

Which element in the second row of the periodic table has six valence electrons and a valence of two?

Accepted Answer

The answer of Which element in the second row of...

Question 5

Methanol has a pKa of 15.5. Calculate its Ka.

Accepted Answer

The answer of Methanol has a pKa of 15.5. Calculate...

Question 6

In the reaction below, label each reactant as a nucleophile or an electrophile.

Accepted Answer

BH₃, electr...

Question 7

Draw the Lewis structure for 2-butanol, CH3CH(OH)CH2CH3.

Accepted Answer

Question 8

Orbitals which are equal in energy are referred to as ________.

Accepted Answer

A)   degenerate
B)   polar
C)   nodes
D)   filled
E)   nonpolar

Question 9

Draw an acceptable line-angle formula for the compound shown below.

Accepted Answer

The answer of Draw an acceptable line-angle formula for the...

Question 10

Which of the following terms comes closest to describing an electrophile?

Accepted Answer

A)   anion
B)   Lewis base
C)   Lewis acid
D)   nucleophile
E)   nonpolar

Question 11

The conjugate acid of ammonia, NH3, is ________.

Accepted Answer

A)   NH2-
B)   NH2OH
C)   NH4+
D)   none of the above

Question 12

Provide the line-angle formula (skeletal structure) for (CH3)2CHCH2CHO.

Accepted Answer

Question 13

A carbon-hydrogen bond in ethane (CH3CH3)  is best described a ________.

Accepted Answer

A)   highly polar
B)   essentially nonpolar
C)   ionic
D)   a multiple bond
E)   resonance stabilized

Question 14

Draw the Lewis structure of acetic acid, CH3CO2H.

Accepted Answer

Question 15

The formal charge on nitrogen in the compound below is ________.

Accepted Answer

A)   +2
B)   +1
C)   0
D)   -1
E)   -2

Question 16

Rank the following compounds in order of increasing basicity: CH3O-, H2N-, H2O, and NH3.

Accepted Answer

Question 17

The atomic number of boron is 5. The correct electronic configuration of boron is:

Accepted Answer

A)   1s22s3
B)   1s22p3
C)   1s22s22p1
D)   2s22p3
E)   1s22s23s1

Question 18

Which sequence ranks the indicated protons in order of increasing acidity?

Accepted Answer

A)   1
B)   2
C)   1
D)   3<2<1

Question 19

How many distinct p orbitals exist in the second electron shell, where n = 2?

Accepted Answer

A)   2
B)   3
C)   4
D)   5
E)   6

Question 20

Write a Lewis structure for a compound with the molecular formula H2N2.

Accepted Answer

Exam 1: Introduction and Review

Write a Lewis structure for a compound with the molecular formula H2N2.

Correct AnswerverifiedShow Answer

A carbon-hydrogen bond in ethane (CH3CH3) is best described a ________.

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Draw the Lewis structure of acetic acid, CH3CO2H.

Correct AnswerverifiedShow Answer

Atoms with the same number of protons but different numbers of neutrons are called ________.

Correct AnswerverifiedShow Answer

In the reaction below, label each reactant as a nucleophile or an electrophile.

Correct AnswerverifiedBH3, electr...View AnswerShow Answer

Methanol has a pKa of 15.5. Calculate its Ka.

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Rank the following compounds in order of increasing basicity: CH3O-, H2N-, H2O, and NH3.

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The conjugate acid of ammonia, NH3, is ________.

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Which element in the second row of the periodic table has six valence electrons and a valence of two?

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The formal charge on nitrogen in the compound below is ________.

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Provide the electron configuration of phosphorus.

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Draw an acceptable line-angle formula for the compound shown below.

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Which of the following terms comes closest to describing an electrophile?

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How many distinct p orbitals exist in the second electron shell, where n = 2?

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The atomic number of boron is 5. The correct electronic configuration of boron is:

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Which sequence ranks the indicated protons in order of increasing acidity?

Correct AnswerverifiedShow Answer

Provide the line-angle formula (skeletal structure) for (CH3)2CHCH2CHO.

Correct AnswerverifiedShow Answer

Orbitals which are equal in energy are referred to as ________.

Correct AnswerverifiedShow Answer

Draw the Lewis structure for 2-butanol, CH3CH(OH)CH2CH3.

Correct AnswerverifiedShow Answer

In the reaction below, label each reactant as a nucleophile or an electrophile. CH3COO- + O2S(OCH3)2 → CH3COOCH3 + CH3SO4-

Correct AnswerverifiedCH3COO-,...View AnswerShow Answer

Write a Lewis structure for a compound with the molecular formula H₂N₂.

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A carbon-hydrogen bond in ethane (CH₃CH₃) is best described a ________.

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Draw the Lewis structure of acetic acid, CH₃CO₂H.

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BH₃, electr...
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Rank the following compounds in order of increasing basicity: CH₃O^-, H₂N^-, H₂O, and NH₃.

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The conjugate acid of ammonia, NH₃, is ________.

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Provide the line-angle formula (skeletal structure) for (CH₃)₂CHCH₂CHO.

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Draw the Lewis structure for 2-butanol, CH₃CH(OH)CH₂CH₃.

Correct Answer
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In the reaction below, label each reactant as a nucleophile or an electrophile. CH₃COO^- + O₂S(OCH₃)₂ → CH₃COOCH₃ + CH₃SO₄^-

Correct Answer
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CH₃COO^-,...
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