We need to first identify the modifications that were done to the first reaction.
2H2O (l) + O2 (g) → 2H2O2 (l)
A chemist measures the enthalpy change ΔH during the following reaction:
2H2O (l) + O2 (g) → 2H2O2 (l) ΔH = 196. kJ
Use this information to calculate ΔH of each reaction. Round each of your answers to the nearest kJ/mol.
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