39. Solving a chemistry problem
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39. Solving a chemistry problem
67. Formulate Hess´s law and its consequences. Under what conditions can the heat of reaction be replaced by a change in the enthalpy of the process? Find the enthalpy of reaction from the enthalpies of formation of the initial substances and reaction products (in accordance with your version).
Table No. 4 - Data for tasks 61–70
Task # Process
67 Al2O3 3SO3 = Al2(SO4)3
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