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Chemistry 12 Online
OpenStudy (warpedkitten):

How should the enthalpy of an intermediate step be manipulated when used to produce an overall chemical equation? Multiply the enthalpy by 1 if the chemical equation is reversed. Multiply the enthalpy by –1 if the chemical equation is reversed. Add 2 to the enthalpy if the coefficients must be doubled. Add 2 to the enthalpy if the coefficients must be cut in half.

OpenStudy (taramgrant0543664):

I believe it would be B

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