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  1. The standard reaction of enthalpy for the hydrogenation ofpropene, CH2CHCH3 (g) + H2 (g) → CH3CH2CH3 (g) is -124 kJ/mol. The
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    2. Carmen asked by Carmen
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  2. 1. The value of ΔH° for the reaction below is -6535 kJ._________ kJ of heat are released in the combustion of 16.0 g C6H6 (l).
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    2. Jess asked by Jess
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    2. ligas asked by ligas
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  3. Given these reactions :X(s) + 1/2O2(g) --> XO(s) (Delta)H= -707.7 kj XCO3(s) --> XO(s)+CO2(g) (Delta)H= +381.9kj What is
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    2. anon asked by anon
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    2. Leanne asked by Leanne
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  4. EnthalpyI'm given that the heat of reaction for the combustion of ethane is -1560kJ/mol. I need to figure out how much heat is
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    2. Justin asked by Justin
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    2. Gino asked by Gino
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  5. Consider the following data.DeltaHf (Na2O (s))=-414kJ/mol Delta H sublimation(Na)=109 kJ/mol I.E. (Na)=495 kJ/mol Bond Energy
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    2. Anon asked by Anon
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    2. Vanessa Ozuna asked by Vanessa Ozuna
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  6. Use standard enthalpies of formation to determine ΔHorxn for:2C2H2(g) + 5O2(g) → 4CO2(g) + 2H2O(l) Enter in kJ.
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    2. jESS asked by jESS
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  7. Use standard enthalpies of formation to determine ΔHorxnfor:3NO2(g) + H2O(l) → 2HNO3(aq) + NO(g) -133.5 = Delta H Find the
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    2. Steve asked by Steve
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  8. I need help I can't seem to get the right answer. Please help!1/2 H_2 (g) + 1/2 Cl_2 (g) --> HCl (g) -92.3 kJ/mol Na(s) + 1/2
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    2. Alex asked by Alex
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  9. Given that:H2 (g) + F2 (g) ---> 2HF (g) H(rxn)= -546.6 kJ 2H2 (g) + O2 (g) ---> 2H2O (l) H (rxn)= -571.6 kJ calculate the value
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    2. Chelsea asked by Chelsea
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    2. Danny asked by Danny
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    2. Jessica asked by Jessica
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  10. Can someone check my answers please?I had specific trouble with 7, 13, and 27 (I'm pretty sure my other answers are correct;
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    2. Sarah asked by Sarah
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    2. Kyle asked by Kyle
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    2. paula asked by paula
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  11. standard enthalpies of formationH20(l) = -286 LiOH(s) = -487 standard enthalpies of solution for LiOH(s) to split into it's ions
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    2. Gemma asked by Gemma
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    2. Leah asked by Leah
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    2. Michelle asked by Michelle
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    2. Jim asked by Jim
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    2. Mark asked by Mark
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  12. use the table below to calculate ΔHo reaction:Standard Enthalpies of Formation, ΔH˚fٍ at 298 K Substance - Formula -
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    2. Sam asked by Sam
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  13. Which of the following is the best definition of Hess' Law?A. Heat is always released by the decomposition of 1 mole of a
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    2. christine asked by christine
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