Use average bond enthalpies (linked above) to calculate the enthalpy change for the following gas-phase reaction. C,H4(g) + H2O2(g) — CH-ОНСH,ОН() To analyze the reaction, first draw Lewis structures for all reactant and product molecules. • Draw the reaction using separate sketchers for each species. Separate multiple reactants and/or products using the + sign from the drop-down arrow. Separate reactants from products using the → symbol from the drop-down menu. Remember to include nonbonding valence electrons in your Lewis structures. opy aste ChemDoodle

Use average bond enthalpies (linked above) to calculate the enthalpy change for the following gas-phase reaction. C,H4(g) + H2O2(g) — CH-ОНСH,ОН() To analyze the reaction, first draw Lewis structures for all reactant and product molecules. • Draw the reaction using separate sketchers for each species. Separate multiple reactants and/or products using the + sign from the drop-down arrow. Separate reactants from products using the → symbol from the drop-down menu. Remember to include nonbonding valence electrons in your Lewis structures. opy aste ChemDoodle

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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H3C-CH3 но—он 2 Нас—он
Please help me understand why this is the correct answer. Question 1. If the change in internal energy is measured to be 0, and heat is absorbed by the system, which of the following reactions could be taking place? (Assume a closed container at constant temperature with a constant external pressure). Correct: BaCO3(s) → BaO(s) + CO2(g)Incorrect C2H4(g) + 3O2(g) → 2CO2(g) + 2H2O(l)Incorrect N2(g) + 2O2(g) → 2NO2(g)Incorrect C(s) + O2(g) → CO2(g)Incorrect None of these reactions could apply. 2) What is the molar mass of an unknown organic liquid based on the data from analysis of the liquid? Vaporization of 230.0 mg of the compound in a 120 mL bulb at 130°C gives a pressure of 440.0 torr. Correct: 110. g/molIncorrect 230. g/molIncorrect none of these answers are correctIncorrect 33.1 g/molIncorrect 1.10×105 g/mol
Consider the reaction. 2Fe2O3⟶4Fe+3O2 Δ?∘rxn=+824.2 kJ The decomposition of 74.0 g of Fe2O3 results in A.) the release of 382 kJ of heat. B.) the absorption of 191 kJ of heat. C.) the release of 191 kJ of heat. D.) the absorption of 30500 kJ of heat. E.) the release of 30500 kJ of heat. F.) the absorption of 382 kJ of heat.
thway | Algebra. Pt Periodic Table - Pta... Scientific Calculator Gravitational Force... Conservation of Mo... Part 1-Combustion of Methane Equation for Enthalpy AH = Hbonds broken- Hsonds formed The following table is a list of selected bond energies. The bonds present in this table are common bonds for combustion reactions Selected Bond Energies Bond Energy (kI/mole) Bond Bond Energy Bond (kl/mole) H-H 436 C=0 799 O-0 495 C-C 348 O-H 463 C=C 614 C-H 413 C-C (aromatic) 519 C-O 358 N=0 623 Use the following balanced equation and chart to complete the bond energy calculations for the fuel, methane CH+202-CO2+2 H20 Compound Total Bond Energy Oxygen, O2 495 kJ/mol Carbon Dioxide, CO, 1598 kl/mol Water, H,O 926 kJ/mol
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3 Bond Break and Formation In your group, depict how bonds break and reform in the chemical reaction for photosynthesis. CO₂ + H₂O C&H12O6 + 0₂ Show on each box: - 1. Check to balance, Draw each compound with each element 2. How compounds look in reactants side (draw). Where will the heat be nedded? Write it on the equation 3. Which bonds will break 4. When bonds break, do they release or absorb energy? 5. How they form bonds again (draw how) 6. When bonds break, do they release or absorb energy? 2
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Enter your answer in the provided box. A certain reaction is spontaneous at 58°C. If the enthalpy change for the reaction is 29 kJ/mol, what is the minimum value of AS (in J/K mol) for the reaction. J/K mol
During an exothermic reaction, H for the reactants was 890 kJ/mol. Which of the following statements is correct about the H for the products and the comparison of the energy in bonds? A)It is less than 890 kJ/mol, and the amount of energy required to break bonds is greater than the amount of energy released in forming bonds. B) It is less than 890 kJ/mol, and the amount of energy required to break bonds is less than the amount of energy released in forming bonds. C) It is greater than 890 kJ/mol, and the amount of energy required to break bonds is greater than the amount of energy released in forming bonds D) It is greater than 890 kJ/mol, and the amount of energy required to break bonds is less than the amount of energy released in forming bonds.
The “Miracle Thaw” is a device that defrosts frozen foods more quickly than when left out to the atmosphere. It is made of an aluminum alloy which has a (relatively) large specific heat. Explain why the engineers chose an alloy with a large specific heat for this task.
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