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How many secondary (2°) carbons are found in 5-ethyl-3,3,4-trimethylheptane?  

The acid-catalyzed Markovnikov addition of H2O to 1-butene produces a ____________ as the major product?  

What is the major organic product of the following reaction?           

The reaction of benzyl bromide (C6H5CH2Br) with azide ion (N3-) is shown below.  When the benzyl bromide concentration is doubled and azide concentration is held constant, the reaction rate is observed to increase by a factor of two.  When the azide concentration is doubled and the benzyl bromide concentration is held constant, the rate of the reaction doubles.  What is the correct rate law for this reaction?                                                C6H5CH2Br  +  N3- ——>  C6H5CH2N3  +  Br- I.   Rate = k [C6H5CH2Br ]2 [N3- ]2 II.  Rate = k [C6H5CH2Br ]2 [N3- ] III. Rate = k [C6H5CH2Br ]4 [N3- ]2 IV. Rate = k [C6H5CH2Br ] [N3- ]

The reaction of 1-chlorobutane with a boiling sodium hydroxide solution is a two-phase reaction.  When the two-phase reaction is completed, why does a homogenous solution result?    

Which of the following solvents may be classified as polar and protic?  

Before patients are prescribed bisphosphates what must the patient have normal levels of?

Which of the following is the best nucleophile?    

Which one of the following correctly describes the reaction below?      

The structures below are: