Question

according to hesss law, if a series of intermediate reactions are combined, the enthalpy change of the overall reaction is the fraction of the individual enthalpies of the intermediate reactions. the sum of the enthalpy changes of the intermediate reactions. the product of the enthalpy changes of the intermediate reactions. the difference between the enthalpies of the intermediate reactions.

Explanation:

Hess's law states that the enthalpy change of an overall reaction is the sum of the enthalpy changes of the intermediate reactions. This is because enthalpy is a state - function, meaning it depends only on the initial and final states and not on the path taken.

Answer:

the sum of the enthalpy changes of the intermediate reactions.