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Chemistry, 05.12.2019 18:31 gypsybrio1512

If you need to reverse the following reaction and multiply it by 2 in order for it
to be an intermediate reaction in a hess's law problem, what would be the
final value for the enthalpy of reaction you use for this intermediate reaction?
h2 + 0.5 02 -> h2o, ah = -286 kj

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