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Hess' Law

3.1 - 3.8 Energetics

An exothermic reaction  3.1 Energetics  Students should:3.1 kno...
https://www.mychem.co.uk/index.php/igcse-chemistry/physical-chemistry/energetics

You need to know the definitions of: 

  • Enthalpy change of formation  
  • Enthalpy change of combustion 

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