Krypton difluoride can be used to oxidize xenon to xenon hexafluoride according to the following chemical equation: 3 KrF2(g) + Xe(g) → XeF6(g) + 3 Kr(g) Calculate the standard enthalpy change for this reaction given the values for the standard enthalpies for formation below: Standard Enthalpy Formula of Formation

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A: Atomic number of given as the number of protons in an atom.