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Which of the following statements about Hess's law is correct?.
- A.A) The total enthalpy change for a reaction is independent of the route taken.
- B.B) Hess's law can only be applied to reactions in the gas phase.
- C.C) The enthalpy change of a reaction is always negative.
- D.D) Hess's law applies only to exothermic reactions.
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