Which statement is true about the potential energy diagram for an endothermic reaction

A. the potential energy of the products is equal to the potential energy of the reactants

B. it starts at a higher energy value and ends at a lower energy value

C. the energy value remains the same throughout the diagram

D. products have more potential energy that reactants

Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.