Based on the diagram, which statement explains how energy is conserved
during this chemical reaction?
OA. The potential energy lost by the reaction system (C) is also lost by
the surroundings.
B. The potential energy changes indicated by C and B involve energy
lost by the surroundings.
C. The potential energy lost by the reaction system (B) is gained by
the surroundings.
OD. The potential energy gained by the reaction system (A) is also
gained by the surroundings.
