Question

What is the BEST explanation of how energy is conserved in chemical reactions? A. It is converted or stored, not created or destroyed. B. It is recycled to power reactions, not created anew. C. It is stored in the products of a reaction, not destroyed. D. It is completely transferred to the molecules in the reaction.

Answer 1

My assumption is The energy is stored in the bonds of the products as chemical energy. In an endothermic reaction, the products have more stored chemical energy than the reactants. This is represented by the graph on the left in the Figure below. In an exothermic reaction, the opposite is true. The products have less stored chemical energy than the reactants. You can see this in the graph in the Figure below.

Since the energy contained in the bonds of reactant molecules always equals the energy contained in the bonds of product molecules, the energy a system increases then the energy of the surroundings should decrease by the exact same amount.

so my prediction is that since this energy may only be converted and stored in an object and it is not to change that it would be answer: A

i hope my insight was helpful