Fill the appropriate electronic configuration in the blank. K (1s22s22p63s23p64s1) + Cl (1s22s22p63s23p5) → K+ _____ + Cl- (1s22s22p63s23p6)

A) (1s22s22p63s23p64s2) B) (1s22s22p63s23p65s1) C) (1s22s22p63s23p6) D) (1s22s22p63s23p64s1) A) (1s22s22p63s23p64s2) B) (1s22s22p63s23p65s1) C) (1s22s22p63s23p6) D) (1s22s22p63s23p64s1)

Exam 1: Covalent Bonding and Shapes of Molecules

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The following two structural formulas represent isomers. $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2}$ $\quad$ $\quad$ $\quad$ $\quad$ | $\quad$ $\quad$ $\quad$ $\mathrm{CH}_{2} \mathrm{CH}_{3}$ $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CHCH}_{3}$ $\quad$ $\quad$ $\quad$ $\quad$ | $\quad$ $\quad$ $\quad$ $\mathrm{CH}_{2} \mathrm{CH}_{3}$

(True/False)

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Question 21

What is the approximate C−C−C bond angle in propyne, HC≡CCH₃?

(Multiple Choice)

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Question 22

Which of the following bonds is a polar covalent bond?

(Multiple Choice)

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Question 23

Which of the following bonds has the smallest dipole moment?

(Multiple Choice)

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Question 24

Which of the following statements is not true?

(Multiple Choice)

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Question 25

How many electrons are there in the valence shell of the carbon atom of the methyl anion, CH₃−?

(Multiple Choice)

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Question 26

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

(Short Answer)

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Question 27

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

(True/False)

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Question 28

Which of the following species possesses a formal charge?

(Multiple Choice)

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Question 29

Which of the following is a tertiary alcohol?

(Multiple Choice)

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Question 30

Which of the following statements is not true about the acetate anion, CH₃CO₂−?

(Multiple Choice)

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Question 31

Fill the appropriate electronic configuration in the blank. K (1s²2s²2p⁶3s²3p⁶4s¹) + Cl (1s²2s²2p⁶3s²3p⁵) → K⁺ _____ + Cl^- (1s²2s²2p⁶3s²3p⁶)

(Multiple Choice)

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Question 32

Which of the following bonds is the most polar?

(Multiple Choice)

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Question 33

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.

(True/False)

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Question 34

What is the molecular formula of Ritalin, shown below?

(Essay)

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Question 35

What is the ground-state electronic configuration of a fluorine atom (fluorine: atomic number 9)?

(Multiple Choice)

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Question 36

Which of the following molecules has a molecular dipole moment?

(Multiple Choice)

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Question 37

Which of the following molecules has a molecular dipole moment?

(Multiple Choice)

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Question 38

Which of the following best represents an sp² hybridized atomic orbital of carbon which overlaps with the 1s atomic orbital of hydrogen to form a C−H σ bonding molecular orbital in ethene, H₂C=CH₂

(Multiple Choice)

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Question 39

Which of the 3 structures shown below has the shortest bond length? Justify your answer.

(Essay)

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Question 40

Showing 21 - 40 of 118

Exam 1: Covalent Bonding and Shapes of Molecules

What is the approximate C−C−C bond angle in propyne, HC≡CCH3?

Which of the following bonds is a polar covalent bond?

Which of the following bonds has the smallest dipole moment?

Which of the following statements is not true?

How many electrons are there in the valence shell of the carbon atom of the methyl anion, CH3−?

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

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

Which of the following species possesses a formal charge?

Which of the following is a tertiary alcohol?

Which of the following statements is not true about the acetate anion, CH3CO2−?

Fill the appropriate electronic configuration in the blank. ​ K (1s22s22p63s23p64s1) + Cl (1s22s22p63s23p5) → K+ _____ + Cl- (1s22s22p63s23p6)

Which of the following bonds is the most polar?

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.

What is the molecular formula of Ritalin, shown below?

What is the ground-state electronic configuration of a fluorine atom (fluorine: atomic number 9)?

Which of the following molecules has a molecular dipole moment?

Which of the following molecules has a molecular dipole moment?

Which of the following best represents an sp2 hybridized atomic orbital of carbon which overlaps with the 1s atomic orbital of hydrogen to form a C−H σ bonding molecular orbital in ethene, H2C=CH2

Which of the 3 structures shown below has the shortest bond length? Justify your answer. ​

Alkanes and Cycloalkanes

Stereoisomerism and Chirality

Acids and Bases

Alkenes: Bonding, Nomenclature, and Properties

Reactions of Alkenes

Alkynes

Haloalkanes, Halogenation, and Radical Reactions

Nucleophilic Substitution and Beta-Elimination

Alcohols

Ethers, Epoxides, and Sulfides

Infrared Spectroscopy

Nuclear Magnetic Resonance Spectroscopy

Mass Spectrometry

An Introduction to Organometallic Compounds

Aldehydes and Ketones

Carboxylic Acids

Functional Derivatives of Carboxylic Acids

Enolate Anions and Enamines

Dienes, Conjugated Systems, and Pericyclic Reactions

Benzene and the Concept of Aromaticity

Reactions of Benzene and Its Derivatives

Amines

Catalytic Carbon-Carbon Bond Formation

Carbohydrates

Lipids

Amino Acids and Proteins

Nucleic Acids

Organic Polymer Chemistry

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What is the approximate C−C−C bond angle in propyne, HC≡CCH₃?

How many electrons are there in the valence shell of the carbon atom of the methyl anion, CH₃−?

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

Which of the following statements is not true about the acetate anion, CH₃CO₂−?

Fill the appropriate electronic configuration in the blank. K (1s²2s²2p⁶3s²3p⁶4s¹) + Cl (1s²2s²2p⁶3s²3p⁵) → K⁺ _____ + Cl^- (1s²2s²2p⁶3s²3p⁶)

Which of the following best represents an sp² hybridized atomic orbital of carbon which overlaps with the 1s atomic orbital of hydrogen to form a C−H σ bonding molecular orbital in ethene, H₂C=CH₂

Which of the 3 structures shown below has the shortest bond length? Justify your answer.