In the following reaction, NaCl (s) + energy → Na+ (aq) + Cl-(aq), what role did the energy play as a “reactant” on the left side of the equation?
A. It was energy put into the solid in order to make the particle reach activation energy to break apart.
B. It was energy absorbed from the system that was already present.
C. It was energy released from the reactants to the surroundings.