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Chemistry, 30.10.2019 06:31, WritingStar1313
011 1.0 points what energy change is associated with the reaction to obtain one mole of h2 from one wang (ew22622) β 19d thermodynamics: first law β ozuna β (92127) 3 mole of water vapor? the balanced equation is 2 h2o(g) β 2 h2(g) + o2(g) and the relevant bond energies are h h : 436 kj/mol; h o : 467 kj/mol; o o : 146 kj/mol; o o : 498 kj/mol. 1. β436 kj 2. +249 kj 3. β425 kj 4. +425 kj
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