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.

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the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.