which fact must be true if a relationship is endothermic?
A ) the energy of each bond on the reactant side is greater than the energy of each bond on the product side.
B ) more energy is needed to form the bonds on the product side that form the bonds the reactant side.
C ) more bond energy is absorbed on the reactant side than released on the product side.
D ) the bond energy released by breaking the bonds in the reactants is greater that the bond energy used ti for the products.
C ) more bond energy is absorbed on the reactant side than released on the product side.
In an endothermic reaction, the system absorbs energy from its surroundings. This means that the energy required to break the bonds in the reactants is greater than the energy released when the new bonds form in the products. Because of this, there is a net absorption of energy, which is why option C is the correct fact for an endothermic reaction.