select the true statement about the diagram. it shows an exothermic overall reaction. it represents only one…

select the true statement about the diagram. it shows an exothermic overall reaction. it represents only one reaction. it can be used for a hesss law calculation. done

select the true statement about the diagram. it shows an exothermic overall reaction. it represents only one reaction. it can be used for a hesss law calculation. done

Answer

Brief Explanations:

Hess's law states that the enthalpy change of an overall reaction is the sum of the enthalpy changes of the individual steps. The diagram with multiple $\Delta H$ values suggests it can be used for Hess's law calculations. The diagram doesn't clearly show if it's exothermic overall as we don't know the signs and magnitudes well - enough. And it clearly shows multiple reaction - like steps rather than just one reaction.

Answer:

It can be used for a Hess's law calculation.