Which of the mechanistic steps shown represents the loss of a leaving group?

Which of the choices shows the correct mechanism for the elimination reaction of 2-bromo-2,3-dimethylbutane with methoxide?

What is the major organic product of the dehydration reaction shown.

Which of the choices gives the rate equation for the following SN1 reaction?

Which of the choices is a substitution reaction?

Which of the alkyl halides shown will undergo the slowest SN2 reaction?

Draw the major product of the reaction shown.

Using the bond dissociation energies given, calculate ΔH° for the following reaction.     Bond A-B   ΔH° KJ/mol CH3CHOHCH2CH3 381 H-OH 498 CH3CHFCH2CH3 444 H-F 569  

What is (are) the most likely product(s) for the reaction shown?

Select the word or phrase that complete each sentence (constitutional isomers, diastereomers, enantiomers, meso compounds, higher, lower, reaction, addition, carbocation, carbanion, nucleophile, electrophile, elimination, heterolysis, homolysis, reagent, substitution, stronger, weaker, charge, activation energy, enthalpy, entropy, catalyst, transition state, intermediate,  concerted, two step, SN1, SN2, E1, E2, racemization, hyperconjugation, alkyl halides, inversion):     On an energy diagram, each peak represents a(an) ……………………………..  Complete word/phrase and correct spelling (verbatim) is required. No partial credit.