Use and modify some/all the reactions provided to form the indicated overall reaction according to Hess' Law. • If a reaction is not used in your Hess' Law process, include that indication by multiplying the reaction by "0" • If no modification is needed and the reaction is applied as written below, include that indication by multiplying the reaction by "1" • Use whole numbers and simple fractions (such as "2" or "1/2", not 0.5) and negative signs (such as "-2") where needed Then calculate and report the enthalpy change (in kJ) for the overall reaction in the indicated blank, including units with your written value and rounded to 1 decimal place. Overall Reaction: CS2(1) + 302(g) → CO2(g) +2SO2(g) Rxn # Reaction ΔΗ° (kJ) 1 C(s) → C(g) 716.67 2 C(s) + O2(g) → CO2(g) -393.5 3 3Fe(s) +202(g) → Fe3O4(s) -1118 4 C(s) + 2S (s) → CS2(1) 87.9 5 CH4(g) + O2(g) → CO2(g) + H₂O(g) -882.0 S(s) + O2(g) → SO2(g) -296.8 N2(g) + 4H2(g) + Cl2(g) → 2NH4Cl(g) -629.1 6 7

Use and modify some/all the reactions provided to form the indicated overall reaction according to Hess' Law. • If a reaction is not used in your Hess' Law process, include that indication by multiplying the reaction by "0" • If no modification is needed and the reaction is applied as written below, include that indication by multiplying the reaction by "1" • Use whole numbers and simple fractions (such as "2" or "1/2", not 0.5) and negative signs (such as "-2") where needed Then calculate and report the enthalpy change (in kJ) for the overall reaction in the indicated blank, including units with your written value and rounded to 1 decimal place. Overall Reaction: CS2(1) + 302(g) → CO2(g) +2SO2(g) Rxn # Reaction ΔΗ° (kJ) 1 C(s) → C(g) 716.67 2 C(s) + O2(g) → CO2(g) -393.5 3 3Fe(s) +202(g) → Fe3O4(s) -1118 4 C(s) + 2S (s) → CS2(1) 87.9 5 CH4(g) + O2(g) → CO2(g) + H₂O(g) -882.0 S(s) + O2(g) → SO2(g) -296.8 N2(g) + 4H2(g) + Cl2(g) → 2NH4Cl(g) -629.1 6 7

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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152 A 352.44 155 T 362.31 153 G 355.67 156 X 365.88 154 D 359.12 157 N 369.52 Consider the following reaction: AH = -532.6 kJ ΤΧ Calculate the heat that will be released when 29.87 grams of GX are formed? AG₂+2 XD - AD2 + 2 GX
A chemist measures the energy change ΔH during the following reaction: Cl2(g)+H2(g)→2HCl(g) =ΔH−184.kJ Use the information to answer the following questions. This reaction is... endothermic. exothermic. Suppose 46.0g of Cl2 react. Will any heat be released or absorbed? Yes, absorbed. Yes, released. No. If you said heat will be released or absorbed in the second part of this question, calculate how much heat will be released or absorbed. kJ Round your answer to 3 significant digits.
enthalpy a... A chemist measures the energy change AH during the following reaction: 2 H,O(1) → 2 H,(9)+O%(g) AH=572. kJ Use the information to answer the following questions. endothermic. This reaction is... exothermic. Suppose 90.6 g of H,0 react. Yes, absorbed. Yes, released. Will any heat be released or absorbed? No. If you said heat will be released or absorbed in the second part of this question, calculate how much heat will be released or absorbed. Round your answer to 3 significant digits. Explanation Check MacBook P
Consider these reactions: Reaction 1: H₂(g) + Cl₂(g) 2HCl(g) AH = -184.6 kJ Reaction 2: 20F2(g) O₂(g) + 2 F₂ (g) ΔΗ = -49.4 kJ Reaction 3: N₂(g) +20₂ (8) 2NO₂(g) ΔΗ = +66.4 kJ
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9:15 & a Part 1 Several chemical reactions happen in bioluminescent algae. One of the most important is cellular respiration, which along with photosynthesis helps produce the energy algae need to live. Cellular respiration can be represented by this chemical equation: 60₂ heat 6 CO₂ + 6H₂O + → C6H12O6 + glucose water oxygen carbon dioxide thermal energy 1. Since energy is released in cellular respiration, this reaction is exothermic. Why is the reaction exothermic, not endothermic? To answer this question, draw a model, create a graph, or write an explanation that includes: These materials were developed by the inquiryHub RPP, including educators from CO and IL, Northwestern University and the University of Colorado Boulder, with support from the Hewlett Foundation, the Spencer Foundation, the National Science Foundation and Denver Public Schools. Except where otherwise noted, this work is licensed under the Creative Commons Attribution 4.0 (сс O BY Hub International License. Version…
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