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Select the word that will best complete the following sentence: (atomic, electronegativity, isomers, sp, sp2, sp3, stronger, weaker, Pi, sigma, hybridization, inductive, resonance, conjugated base, conjugated acid, higher, lower, active, electrophilic, nucleophilic, hydrophobic, hydrophilic, reactive, axial, conformations, equatorial, stereoisomers, steric, torsional, angle, alkanes, cycloalkanes, ring flip, element.)   The increase in energy where tetrahedral bond angles deviate from the optimum angle of  109.5 degree is  known as………………. strain. Complete word/phrase and correct spelling (verbatim) is required. No partial credit.

Match the Newman projection for the conformation of 2-methylbutane to the indicated position on the potential energy diagram.                                       ​ A B C D Conformation B is represented by Roman numeral ____. (enter the Roman number. No other numbers will be accepted)

Select the word or phrase that will best complete the following sentence: (atomic, electronegativity, isomers, sp, sp2, sp3, stronger, weaker, Pi, sigma, hybridization, inductive, resonance, conjugated base, conjugated acid, higher, lower, active, electrophilic, nucleophilic, hydrophobic, hydrophilic, reactive, axial, conformations, equatorial, stereoisomers, steric, torsional, angle, alkanes, cycloalkanes, ring flip, element.)   A branched alkane has a(an)________ boiling point relative to the isomeric linear alkane. Complete word/phrase and correct spelling (verbatim) is required. No partial credit.

Which of the following statements about meso compounds is not true?

Which compound is a diastereomer of the structure shown?

Which of the following structures is (S)-3-methylheptane?

Match the Newman projection for the conformation of 2-methylbutane to the indicated position on the potential energy diagram.                                       ​ A B C D Conformation C is represented by Roman numeral ____. (enter the Roman number. No other numbers will be accepted)

What is the correct order of the Cahn-Ingold-Prelog ranking of the following substituents as used in assigning R and S configurations of chiral centers? (higher ranking > lower ranking) ​ 1. −C≡CH 2. −CH2NH2 3. −NHCH3 4. −CN ​

Which of the following structures represents trans-1,3-dimethylcyclohexane?

Which of the following structures has the S configuration?