Instructions: Consider the two structures below to answer the following question. CH3CH2OH CH3OCH3 Refer to instructions. Which of the following correctly describes the structure of these compounds?

A) All carbon atoms are sp3 hybridized. B) All of the bonds are sigma bonds. C) Each oxygen atom has two nonbonding pairs of electrons. D) The bond angle around each oxygen atom is ideally about 109.5$\degree$. E) All of these A) All carbon atoms are sp3 hybridized. B) All of the bonds are sigma bonds. C) Each oxygen atom has two nonbonding pairs of electrons. D) The bond angle around each oxygen atom is ideally about 109.5$\degree$. E) All of these

Which of the following best represents the shape of a sp3 hybrid orbital of carbon?

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

Exam 1: Structure and Bonding:acids and Bases

Instructions: Refer to the following equation to answer the question(s) below. Refer to instructions. Will this reaction take place as written in the forward direction? Explain.

(Short Answer)

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Question 21

The structure of urea is shown below. Fill in any nonbonding valence electrons that are missing from the line-bond structure.

(Essay)

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Question 22

Instructions: Consider the species below to answer the following question. Refer to instructions. Which of the following would be common to all?

(Multiple Choice)

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Question 23

Instructions: Indole is pleasant smelling in highly dilute solutions and has been used in perfumery. Use the structure of indole, below, to answer the following question(s). Refer to instructions. Indole can function as a Lewis base in the presence of strong acid. Formulate a reaction, using a generic acid (HA), showing electron flow with arrows, that demonstrates this reactivity of indole.

(Essay)

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Question 24

Instructions: Label the acid and base in each reaction below. Label: $\mathrm { CH } _ { 3 } \mathrm { OH } + \mathrm { NaH } \longrightarrow \mathrm { CH } _ { 3 } \mathrm { O } ^ { - } \mathrm { Na } ^ { + } + \mathrm { H } _ { 2 }$

(Essay)

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Question 25

Instructions: Propose a structure for a molecule that meets the following description. Refer to instructions. Contains only one sp³ hybridized carbon and two sp² hybridized carbons.

(Essay)

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Question 26

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

(Multiple Choice)

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Question 27

According to atomic theory:

(Multiple Choice)

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Question 28

In the two structures shown below, what do the positions labeled with the arrow have in common?

(Multiple Choice)

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Question 29

Convert the skeletal drawing of the pharmaceutical Vioxx into a molecular formula.

(Essay)

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Question 30

Which is the strongest base (pK_a values given for conjugate acid)?

(Multiple Choice)

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Question 31

Instructions: Consider the two structures below to answer the following question. CH₃CH₂OH CH₃OCH₃ Refer to instructions. Which of the following correctly describes the structure of these compounds?

(Multiple Choice)

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Question 32

Of the bonds found in which is the most polar?

(Multiple Choice)

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Question 33

How many total valence electrons are represented in the following electron configuration? 1s²2s²2p_x² 2p_y² 2p_z¹ or 1s²2s²2p⁵

(Multiple Choice)

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Question 34

Which of the following best represents the shape of a sp³ hybrid orbital of carbon?

(Multiple Choice)

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Question 35

Identify the reactants and product in the reaction below as acids or bases and specify whether they are Lewis and/or Brønsted-Lowry.

(Essay)

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Question 36

Instructions: Use the convention d-/d+ and the crossed arrow ( ) to show the direction of the expected polarity of the indicated bonds in the following compound(s). Refer to instructions. A C-O bond in tetrahydrofuran,

(Essay)

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Question 37

Draw the structure for CCl₂F₂ using solid, wedged, and dashed lines to show the tetrahedral geometry.

(Essay)

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Question 38

Circle the Lewis bases in the group of compounds below.

(Essay)

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Question 39

How many nonbonding electron pairs are in the structure shown below?

(Multiple Choice)

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Question 40

Showing 21 - 40 of 40

Instructions: Refer to the following equation to answer the question(s) below. Refer to instructions. Will this reaction take place as written in the forward direction? Explain.

The structure of urea is shown below. Fill in any nonbonding valence electrons that are missing from the line-bond structure.

Instructions: Consider the species below to answer the following question. Refer to instructions. Which of the following would be common to all?

Instructions: Label the acid and base in each reaction below. Label: $\mathrm { CH } _ { 3 } \mathrm { OH } + \mathrm { NaH } \longrightarrow \mathrm { CH } _ { 3 } \mathrm { O } ^ { - } \mathrm { Na } ^ { + } + \mathrm { H } _ { 2 }$

Instructions: Propose a structure for a molecule that meets the following description. Refer to instructions. Contains only one sp³ hybridized carbon and two sp² hybridized carbons.

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

According to atomic theory:

In the two structures shown below, what do the positions labeled with the arrow have in common?

Convert the skeletal drawing of the pharmaceutical Vioxx into a molecular formula.

Which is the strongest base (pK_a values given for conjugate acid)?

Instructions: Consider the two structures below to answer the following question. CH₃CH₂OH CH₃OCH₃ Refer to instructions. Which of the following correctly describes the structure of these compounds?

Of the bonds found in which is the most polar?

How many total valence electrons are represented in the following electron configuration? 1s²2s²2p_x² 2p_y² 2p_z¹ or 1s²2s²2p⁵

Which of the following best represents the shape of a sp³ hybrid orbital of carbon?

Identify the reactants and product in the reaction below as acids or bases and specify whether they are Lewis and/or Brønsted-Lowry.

Instructions: Use the convention d-/d+ and the crossed arrow ( ) to show the direction of the expected polarity of the indicated bonds in the following compound(s). Refer to instructions. A C-O bond in tetrahydrofuran,

Draw the structure for CCl₂F₂ using solid, wedged, and dashed lines to show the tetrahedral geometry.

Circle the Lewis bases in the group of compounds below.

How many nonbonding electron pairs are in the structure shown below?

Alkanes: The Nature of Organic Compounds

Alkenes and Alkynes: the Nature of Organic Reactions

Reactions of Alkenes and Alkynes

Aromatic Compounds

Sterechemistry at Tetrahedral Centers

Organohalides: Nucleophilic Substitutions and Eliminations

Alcohols, Phenols, Ethers, and Their Sulfur Analogs

Aldehydes and Ketones: Nucleophilic Addition Reactions

Carboxylic Acids and Derivatives: Nucleophilic Acyl Substitution Reactions

Carbonyl Alpha-Substitution Reactions and Condensation Reactions

Amines

Structure Determination

Biomolecules: Carbohydrates

Biomolecules: Amino Acids, Peptides, and Proteins

Biomolecules: Lipids and Nucleic Acids

The Organic Chemistry of Metabolic Pathways

Filters

Exam 1: Structure and Bonding:acids and Bases

Instructions: Refer to the following equation to answer the question(s) below. Refer to instructions. Will this reaction take place as written in the forward direction? Explain.

The structure of urea is shown below. Fill in any nonbonding valence electrons that are missing from the line-bond structure.

Instructions: Consider the species below to answer the following question. Refer to instructions. Which of the following would be common to all?

Instructions: Label the acid and base in each reaction below. Label: CH3OH+NaH⟶CH3O−Na++H2\mathrm { CH } _ { 3 } \mathrm { OH } + \mathrm { NaH } \longrightarrow \mathrm { CH } _ { 3 } \mathrm { O } ^ { - } \mathrm { Na } ^ { + } + \mathrm { H } _ { 2 }CH3​OH+NaH⟶CH3​O−Na++H2​

Instructions: Propose a structure for a molecule that meets the following description. Refer to instructions. Contains only one sp3 hybridized carbon and two sp2 hybridized carbons.

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

According to atomic theory:

In the two structures shown below, what do the positions labeled with the arrow have in common?

Convert the skeletal drawing of the pharmaceutical Vioxx into a molecular formula.

Which is the strongest base (pKa values given for conjugate acid)?

Instructions: Consider the two structures below to answer the following question. CH3CH2OH CH3OCH3 Refer to instructions. Which of the following correctly describes the structure of these compounds?

Of the bonds found in which is the most polar?

How many total valence electrons are represented in the following electron configuration? 1s22s22px2 2py2 2pz1 or 1s22s22p5

Which of the following best represents the shape of a sp3 hybrid orbital of carbon?

Identify the reactants and product in the reaction below as acids or bases and specify whether they are Lewis and/or Brønsted-Lowry.

Instructions: Use the convention d-/d+ and the crossed arrow ( ) to show the direction of the expected polarity of the indicated bonds in the following compound(s). Refer to instructions. A C-O bond in tetrahydrofuran,

Draw the structure for CCl2F2 using solid, wedged, and dashed lines to show the tetrahedral geometry.

Circle the Lewis bases in the group of compounds below.

How many nonbonding electron pairs are in the structure shown below?

Alkanes: The Nature of Organic Compounds

Alkenes and Alkynes: the Nature of Organic Reactions

Reactions of Alkenes and Alkynes

Aromatic Compounds

Sterechemistry at Tetrahedral Centers

Organohalides: Nucleophilic Substitutions and Eliminations

Alcohols, Phenols, Ethers, and Their Sulfur Analogs

Aldehydes and Ketones: Nucleophilic Addition Reactions

Carboxylic Acids and Derivatives: Nucleophilic Acyl Substitution Reactions

Carbonyl Alpha-Substitution Reactions and Condensation Reactions

Amines

Structure Determination

Biomolecules: Carbohydrates

Biomolecules: Amino Acids, Peptides, and Proteins

Biomolecules: Lipids and Nucleic Acids

The Organic Chemistry of Metabolic Pathways

Filters

Instructions: Label the acid and base in each reaction below. Label: $\mathrm { CH } _ { 3 } \mathrm { OH } + \mathrm { NaH } \longrightarrow \mathrm { CH } _ { 3 } \mathrm { O } ^ { - } \mathrm { Na } ^ { + } + \mathrm { H } _ { 2 }$

Instructions: Propose a structure for a molecule that meets the following description. Refer to instructions. Contains only one sp³ hybridized carbon and two sp² hybridized carbons.

Which is the strongest base (pK_a values given for conjugate acid)?

Instructions: Consider the two structures below to answer the following question. CH₃CH₂OH CH₃OCH₃ Refer to instructions. Which of the following correctly describes the structure of these compounds?

How many total valence electrons are represented in the following electron configuration? 1s²2s²2p_x² 2p_y² 2p_z¹ or 1s²2s²2p⁵

Which of the following best represents the shape of a sp³ hybrid orbital of carbon?

Draw the structure for CCl₂F₂ using solid, wedged, and dashed lines to show the tetrahedral geometry.