Ethyl acetate can be prepared by an sn2 reaction. draw the alkylbromide and nucleophile used in the reaction. remember to include formal charges (do not include counterions).

Few important points related to reaction:

1. is a one-step reaction that follows second order kinetics.

2. In reaction, a transition state is formed in situ.

3. Strong nucleophiles like are used in case of bi-molecular nucleophilic substitution reaction.

Ethyl acetate can be prepared by a second-order nucleophilic substitution reaction between acetic acid and ethyl bromide.  

The reaction between acetic acid and ethyl bromide is drawn below:

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.