Im An Incedibly Stupif Highschool Chem

Heats of Formation and Hess’s Law
2H2020) -gt; 2H20() + 02(g)
KJ/mol. Determine the AH for the decomposition of H202 in the reaction:
.The heat of formation of hydrogen peroxide is -187.8 kJ/mol. The heat of formation of water is -285.8
(ans. AHrxn = -196.0 kJ)Science

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