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Verified answer
Delta H=98 + (-285.8)= -187.8
2H2+O2->2H2O -571,6kj
2H2O+O2->2H2O2 196kj
2H2+O2->2H2O -571,6kj
2H20 dicoret
2H2+2O2->2H2O2 -375,6kj
dibagi 2
H2+O2->H2O2 -187,8kj