What is the first step in the general mechanism for nucleophilic acyl substitution?

What is the name of the compound shown below?

Which of the following compounds does not have an alpha hydrogen?

Predict the product for the following reaction.     

The acetoacetic ester synthesis, shown below, can be used to prepare 5-methyl-2-hexanone. Which one of the following alkyl bromides would be used in the synthesis?  

Which one of the following would not be expected to give a significant yield in a Dieckmann condensation?

Which of the following cannot be the starting material for the following reaction?

Predict the product for the following reaction.      

What is(are) the major organic product(s) of the following reaction?

Provide the reagents necessary to carry out the following conversion using a malonic ester synthesis.