Section III: Analysis and Discussion 6.What do the key results indicate?

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a

c) should be the answer.