Step-by-step explanation:
In endothermic reactions, the bond energy of the products is less high than the reactants (strong bonds).
It is known that:
ΔH = ∑ H (Bond energy of reactants) - H (Bond energy of products)
Where H is enthalpy, a state function. It only depends on the initial and final states.
Given that, the bond energy of the products is less high than the bond energy of the reactants so the bond energy released by breaking the bonds of the reactants is greater than the energy used to form products.
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Answer: the bond energy released by breaking the bonds in the reactants is greater than the bond energy used to form the products.