Question 1

The maximum number of electrons that a molecular orbital can contain is four.

Accepted Answer

A molecular orbital can contain a maximum of two electrons, following the Pauli exclusion principle which states that no two electrons can have the same set of quantum numbers within a quantum system.

Question 2

Provide a neatly drawn figure to show the atomic orbitals that overlap to form each of the bonds in ethene (ethylene, H₂C=CH₂). Label each bond (e.g., C-H σ bond) and indicate which atomic orbitals contribute to this bond (e.g., C 2sp³ + H 1s).

Accepted Answer

The answer of Provide a neatly drawn figure to show...

Question 3

The curved arrows in the resonance structure for the acetate ion shown below  indicate the following alternative resonance structure for the acetate ion.

Accepted Answer

The answer of The curved arrows in the resonance structure...

Question 4

The approximate H-C-H bond angle in methane is ______°.

Accepted Answer

The answer of The approximate H-C-H bond angle in methane...

Question 5

The following molecules all contain the same functional group except 2. 1.CH₃OH 2.CH₃OCH₃ 3.CH₃CH₂OH 4.CH₃CH(OH)CH₃

Accepted Answer

The molecules listed appear to be in a chemical notation that isn't standard, but based on the context of the question, it's implied that three of them share a common functional group, while one does not. Given the variations in the structures as hinted by the text, it's reasonable to deduce that one of these molecules indeed has a different functional group than the others.

Question 6

The percent s character in an sp² hybridized orbital is approximately 33%.

Accepted Answer

In an sp² hybridized orbital, there is one s orbital and two p orbitals mixed, making the s character 1/3 or approximately 33%.

Question 7

The formal charge on carbon in carbon monoxide is______.

Accepted Answer

The answer of The formal charge on carbon in carbon...

Question 8

The formal charges in the complex should below are 0 on each H, -1 on N, and +1 on B.

Accepted Answer

The answer of The formal charges in the complex should...

Question 9

Draw bond-line structures of all of the alkanes that have the formula C₅H₁₂.

Accepted Answer

The answer of Draw bond-line structures of all of the...

Question 10

Draw bond-line structures of all of the alcohols that have the formula C₄H₁₀O.

Accepted Answer

The answer of Draw bond-line structures of all of the...

Question 11

Provide a neatly drawn figure to show the atomic orbitals that overlap to form each of the bonds in water (H₂O) and which contain the lone pair of electrons. Label each orbital with its hybridization.

Accepted Answer

The answer of Provide a neatly drawn figure to show...

Question 12

The following species forms during an organic reaction.  The formal charge on the carbon atom indicated by the arrow is +1.

Accepted Answer

The answer of The following species forms during an organic...

Question 13

Consider the structure of urea given below.  To complete the Lewis structure, six nonbonding electrons should be added, two to each of the nitrogen atoms and two to the oxygen atom.

Accepted Answer

The answer of Consider the structure of urea given below....

Question 14

The following molecule is classified as a __________amine. $$\mathrm { CH } _ { 3 } - \mathrm { NH } - \mathrm { CH } _ { 3 }$$

Accepted Answer

The answer of The following molecule is classified as a...

Question 15

The following molecule contains an _____________functional group.  ​

Accepted Answer

The answer of The following molecule contains an _____________functional group....

Question 16

Provide a neatly drawn figure to show the atomic orbitals that overlap to form each of the bonds in ammonia (NH₃) and which contain the lone pair of electrons. Label each orbital with its hybridization.

Accepted Answer

The answer of Provide a neatly drawn figure to show...

Question 17

The most electronegative elements in the periodic table are generally found toward the right in a horizontal row and toward the top in a column.

Accepted Answer

Electronegativity increases as you move from left to right across a period and decreases as you move down a group in the periodic table. This places the most electronegative elements in the top right corner, excluding the noble gases.

Question 18

Different compounds with the same molecular formula are called __________.

Accepted Answer

The answer of Different compounds with the same molecular formula...

Question 19

Provide a neatly drawn figure to show the atomic orbitals that overlap to form each of the bonds in ethyne (acetylene, HC≡CH). Label each bond (e.g., C-H σ bond) and indicate which atomic orbitals contribute to this bond (e.g., C 2sp³ + H 1s).

Accepted Answer

The answer of Provide a neatly drawn figure to show...

Question 20

In drawing the Lewis structure for an organic compound, the carbon atoms should always be shown with eight total electrons.

Accepted Answer

In a Lewis structure, carbon atoms follow the octet rule, meaning they should be shown with eight total electrons to reflect their typical bonding behavior, forming four bonds to achieve a stable electron configuration.

Quiz 1: Covalent Bonding and Shapes of Molecules

The maximum number of electrons that a molecular orbital can contain is four.

Provide a neatly drawn figure to show the atomic orbitals that overlap to form each of the bonds in ethene (ethylene, H₂C=CH₂). Label each bond (e.g., C-H σ bond) and indicate which atomic orbitals contribute to this bond (e.g., C 2sp³ + H 1s).

The curved arrows in the resonance structure for the acetate ion shown below indicate the following alternative resonance structure for the acetate ion.

The approximate H-C-H bond angle in methane is ______°.

The following molecules all contain the same functional group except 2. 1.CH₃OH 2.CH₃OCH₃ 3.CH₃CH₂OH 4.CH₃CH(OH)CH₃

The percent s character in an sp² hybridized orbital is approximately 33%.

The formal charge on carbon in carbon monoxide is______.

The formal charges in the complex should below are 0 on each H, -1 on N, and +1 on B.

Draw bond-line structures of all of the alkanes that have the formula C₅H₁₂.

Draw bond-line structures of all of the alcohols that have the formula C₄H₁₀O.

Provide a neatly drawn figure to show the atomic orbitals that overlap to form each of the bonds in water (H₂O) and which contain the lone pair of electrons. Label each orbital with its hybridization.

The following species forms during an organic reaction. The formal charge on the carbon atom indicated by the arrow is +1.

Consider the structure of urea given below. To complete the Lewis structure, six nonbonding electrons should be added, two to each of the nitrogen atoms and two to the oxygen atom.

The following molecule is classified as a __________amine. $\mathrm { CH } _ { 3 } - \mathrm { NH } - \mathrm { CH } _ { 3 }$

The following molecule contains an _____________functional group.

Provide a neatly drawn figure to show the atomic orbitals that overlap to form each of the bonds in ammonia (NH₃) and which contain the lone pair of electrons. Label each orbital with its hybridization.

The most electronegative elements in the periodic table are generally found toward the right in a horizontal row and toward the top in a column.

Different compounds with the same molecular formula are called __________.

Provide a neatly drawn figure to show the atomic orbitals that overlap to form each of the bonds in ethyne (acetylene, HC≡CH). Label each bond (e.g., C-H σ bond) and indicate which atomic orbitals contribute to this bond (e.g., C 2sp³ + H 1s).

In drawing the Lewis structure for an organic compound, the carbon atoms should always be shown with eight total electrons.

Quiz 1: Covalent Bonding and Shapes of Molecules

The maximum number of electrons that a molecular orbital can contain is four.

Provide a neatly drawn figure to show the atomic orbitals that overlap to form each of the bonds in ethene (ethylene, H2C=CH2). Label each bond (e.g., C-H σ bond) and indicate which atomic orbitals contribute to this bond (e.g., C 2sp3 + H 1s).

The curved arrows in the resonance structure for the acetate ion shown below indicate the following alternative resonance structure for the acetate ion.

The approximate H-C-H bond angle in methane is ______°.

The following molecules all contain the same functional group except 2. 1.CH3OH 2.CH3OCH3 3.CH3CH2OH 4.CH3CH(OH)CH3

The percent s character in an sp2 hybridized orbital is approximately 33%.

The formal charge on carbon in carbon monoxide is______.

The formal charges in the complex should below are 0 on each H, -1 on N, and +1 on B.

Draw bond-line structures of all of the alkanes that have the formula C5H12.

Draw bond-line structures of all of the alcohols that have the formula C4H10O.

Provide a neatly drawn figure to show the atomic orbitals that overlap to form each of the bonds in water (H2O) and which contain the lone pair of electrons. Label each orbital with its hybridization.

The following species forms during an organic reaction. The formal charge on the carbon atom indicated by the arrow is +1.

Consider the structure of urea given below. To complete the Lewis structure, six nonbonding electrons should be added, two to each of the nitrogen atoms and two to the oxygen atom.

The following molecule is classified as a __________amine. CH3−NH−CH3\mathrm { CH } _ { 3 } - \mathrm { NH } - \mathrm { CH } _ { 3 }CH3​−NH−CH3​

The following molecule contains an _____________functional group. ​

Provide a neatly drawn figure to show the atomic orbitals that overlap to form each of the bonds in ammonia (NH3) and which contain the lone pair of electrons. Label each orbital with its hybridization.

The most electronegative elements in the periodic table are generally found toward the right in a horizontal row and toward the top in a column.

Different compounds with the same molecular formula are called __________.

Provide a neatly drawn figure to show the atomic orbitals that overlap to form each of the bonds in ethyne (acetylene, HC≡CH). Label each bond (e.g., C-H σ bond) and indicate which atomic orbitals contribute to this bond (e.g., C 2sp3 + H 1s).

In drawing the Lewis structure for an organic compound, the carbon atoms should always be shown with eight total electrons.

Provide a neatly drawn figure to show the atomic orbitals that overlap to form each of the bonds in ethene (ethylene, H₂C=CH₂). Label each bond (e.g., C-H σ bond) and indicate which atomic orbitals contribute to this bond (e.g., C 2sp³ + H 1s).

The following molecules all contain the same functional group except 2. 1.CH₃OH 2.CH₃OCH₃ 3.CH₃CH₂OH 4.CH₃CH(OH)CH₃

The percent s character in an sp² hybridized orbital is approximately 33%.

Draw bond-line structures of all of the alkanes that have the formula C₅H₁₂.

Draw bond-line structures of all of the alcohols that have the formula C₄H₁₀O.

Provide a neatly drawn figure to show the atomic orbitals that overlap to form each of the bonds in water (H₂O) and which contain the lone pair of electrons. Label each orbital with its hybridization.

The following molecule is classified as a __________amine. $\mathrm { CH } _ { 3 } - \mathrm { NH } - \mathrm { CH } _ { 3 }$

The following molecule contains an _____________functional group.

Provide a neatly drawn figure to show the atomic orbitals that overlap to form each of the bonds in ammonia (NH₃) and which contain the lone pair of electrons. Label each orbital with its hybridization.

Provide a neatly drawn figure to show the atomic orbitals that overlap to form each of the bonds in ethyne (acetylene, HC≡CH). Label each bond (e.g., C-H σ bond) and indicate which atomic orbitals contribute to this bond (e.g., C 2sp³ + H 1s).