Balance the following equations. Enter 1 as a coefficient for reactants and products which have no coefficient. (NH4)2Cr2O7(s) _> Cr2O3(s)+N2(g)+H2O(g)

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Answerδh > 0explanationc₆h₆  (s)  → c₆h₆ (l)if you are changing it from a solid to a liquid, you are pretty much melting the solid. this requires heat energy. therefore, the reaction is endothermic (takes in energy); the system enthalpy increases as the reaction proceeds: δh > 0.