Modeling Energy Change Quick Check
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Question
Use the diagram to answer the question.
A graph with the vertical axis labeled, energy (kJ per mol) shows energy of 2H2 + O2 as a horizontal line near the top at energy level 0 and the energy of 2H2O as a horizontal line near the bottom at energy level negative 571.6 kJ per mol.
The diagram represents the reaction of hydrogen gas and oxygen gas to produce water. Which statement best describes the reaction?
(1 point)
Responses
More energy is needed to break the bonds of the reactants than is released in the formation of the products, so the reaction is endothermic.
More energy is needed to break the bonds of the reactants than is released in the formation of the products, so the reaction is endothermic.
More energy is released in the formation of the products than is needed to break the bonds of the reactants, so the reaction is endothermic.
More energy is released in the formation of the products than is needed to break the bonds of the reactants, so the reaction is endothermic.
More energy is released in the formation of the products than is needed to break the bonds of the reactants, so the reaction is exothermic.
More energy is released in the formation of the products than is needed to break the bonds of the reactants, so the reaction is exothermic.
More energy is needed to break the bonds of the reactants than is released in the formation of the products, so the reaction is exothermic.
1 answer
1 answer