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You are given the following hypothetical reactions: 2A → B+C ΔΗ = +50 kJ A → D AH = -80 kJ Part A Use Hess's law to calculate AH for the reaction B + C → 2D. Express your answer in kilojoules to three significant figures. 15. ΑΣΦ AH = Submit Part B AH = Request Answer Submit What is AH for the reaction D → 1 2 Express your answer in kilojoules to three significant figures. VGI ΑΣΦ Request Answer B + 1²1/20 ? C? kJ ? kJ

You are given the following hypothetical reactions: 2A → B+C ΔΗ = +50 kJ A → D AH = -80 kJ Part A Use Hess's law to calculate AH for the reaction B + C → 2D. Express your answer in kilojoules to three significant figures. 15. ΑΣΦ AH = Submit Part B AH = Request Answer Submit What is AH for the reaction D → 1 2 Express your answer in kilojoules to three significant figures. VGI ΑΣΦ Request Answer B + 1²1/20 ? C? kJ ? kJ

Chemistry
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
Chapter6: Thermochemistry
Section: Chapter Questions
Problem 16Q: What is the difference between H and E?
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10:24 PM Fri Oct 13 <Chapter 5 Problem 5.62 You are given the following hypothetical reactions: 2A → B+C AH = +50 kJ A → D AH = -80 kJ Part A Use Hess's law to calculate AH for the reaction B + C → 2D. Express your answer in kilojoules to three significant figures. - ΑΣΦ AH = Submit Part B What is AH for the reaction D → B+/C? ΔΗ = Request Answer Submit Provide Feedback ●●● session.masteringchemistry.com Express your answer in kilojoules to three significant figures. ΨΠ ΑΣΦ Request Answer ? kJ ? kJ ☎ 91% ? Help 12 of 23 Review | Constants | Periodic Table Next >
Transcribed Image Text:10:24 PM Fri Oct 13 <Chapter 5 Problem 5.62 You are given the following hypothetical reactions: 2A → B+C AH = +50 kJ A → D AH = -80 kJ Part A Use Hess's law to calculate AH for the reaction B + C → 2D. Express your answer in kilojoules to three significant figures. - ΑΣΦ AH = Submit Part B What is AH for the reaction D → B+/C? ΔΗ = Request Answer Submit Provide Feedback ●●● session.masteringchemistry.com Express your answer in kilojoules to three significant figures. ΨΠ ΑΣΦ Request Answer ? kJ ? kJ ☎ 91% ? Help 12 of 23 Review | Constants | Periodic Table Next >
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