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