命A https://ezto.mheducation.com/ext/map/index.html?_con=con&external_browser=0&launchUrl=httpnapter6-Thermochemistry:Energy Flow and Chem. 6Saved20Be sure to answer all parts.Consider the following balanced thermochemical equation for a reaction sometimes used for H,Sproduction:Sg(s) + H2(g) → H,S(g)AHn =-20.2 kJ(a) Is this an exothermicor endothermic reaction?exothermicendothermic(b) What is AHn for the reverse reaction?-20.2kJ(c) What is AH when 4.90 mol of Ss reacts?kJ20 of 23曲Next >McGrawMHillEducationprevious) Type here to searchhp

a) ∆H is negetive here, and since ∆H is negetive the reaction is exothermic. If ∆H is negetive,…

Be sure to answer all parts. Consider the following balanced thermochemical equation for a reaction sometimes used for H,S production: 1 Ss(s) + H2(g)- H,S(g) AH =-20.2 kJ rxn (a) Is this an exothermic or endothermic reaction? exothermic endothermic (b) What is AH for the reverse reaction? rxn -20.2 kJ (c) What is AH when 4.90 mol of Ss reacts? kJ

Be sure to answer all parts. Consider the following balanced thermochemical equation for a reaction sometimes used for H,S production: 1 Ss(s) + H2(g)- H,S(g) AH =-20.2 kJ rxn (a) Is this an exothermic or endothermic reaction? exothermic endothermic (b) What is AH for the reverse reaction? rxn -20.2 kJ (c) What is AH when 4.90 mol of Ss reacts? kJ

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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QUESTION 18 PLEASE
uestion 27 "A new element (Rr) has been synthesized and its properties analyzed. When 0.157g of RrO (s) is added to 125g of water at 22.2° C in a coffee cup calorimeter, the following reaction occurs. RrO(s) + H 20(1) – Rr(OH) 2 (aq) AH = -83.1k/mol Given the molar mass for RrO is 74g/mol calculate the following moles of Rro round answer to 4 decimal places omit trailing zeroes 9 rxn in joules round answer to the nearest whole number 9 water in joules round answer to the nearest whole number Final temperature round answer to 1 decimal place omit trailing zeroes " A Moving to another question will save this response.
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