which statement is true for most chemical reactions? an energy change occurs during the breaking and forming…

which statement is true for most chemical reactions? an energy change occurs during the breaking and forming of bonds. the internal energy of the system increases during a reaction. energy is released during the formation of reactants. the enthalpy of the products is higher than the enthalpy of the reactants.

which statement is true for most chemical reactions? an energy change occurs during the breaking and forming of bonds. the internal energy of the system increases during a reaction. energy is released during the formation of reactants. the enthalpy of the products is higher than the enthalpy of the reactants.

Answer

Brief Explanations:

In chemical reactions, energy is needed to break bonds and is released when new bonds are formed. So an energy - change occurs during bond - breaking and bond - forming. The internal energy may increase or decrease depending on the reaction type (endothermic or exothermic). Energy is released during the formation of products, not reactants. Whether the enthalpy of products is higher or lower depends on if the reaction is endothermic or exothermic.

Answer:

An energy change occurs during the breaking and forming of bonds.