7. The diagram shows a hydraulic lift system. The force on piston A is 10 N, and the force piston B exerts is 40 N. If piston B moves 20 cm, how far does plunger B move?

i think it's c. i'm not sure but i think so.

the answer is 75.0%.

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.