B) They are exchange reactions. It is a chemical reaction that involves synthesis, decomposition, the formation and breaking of chemical bonds, as well as the absorption, storage, and release of chemical energy.
In every chemical process, energy is involved. When new bonds form in products, energy is produced. Energy is used to break bonds in reactants. Chemical reactions can be classified as either exothermic or endothermic in terms of energy.
Their reaction to the news was good. His first response when I told him what had transpired was shock. Most of the attendees at the conference reacted angrily to the announcement. When I initially met him, I didn't immediately believe in him.
Learn more about redox reaction here:
https://brainly.com/question/13293425
#SPJ4