Damani thinks that drinking energy drinks will increase the productivity of workers. He creates two groups of 50 workers each and assigns each group the same task (in this case, they're
supposed to staple a set of papers). Group A is given the energy drink to drink while they work.
Group B is not given the energy drink. After an hour, Damani counts how many stacks of
papers each group has made. Group A made 1,587 stacks, Group B made 2,113 stacks.

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.

i think its 100

i hope this !