Need help with chemistry assignment

Wvzzl Y
timer Asked: Dec 10th, 2015

Question Description

Hey I need help with some question about 30 in total for chemistry 2 in college. I took pictures of the questions, most are multiple choices and 1 or 2 worded answers. Could you help? Thats one of the pictures, 30 questions in total. thanks

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Question Completion Status: Question 18 2 points Saved For the reaction SnO2(s) +200g) 5 Sn(s) + 2CO2(g), reagents are mixed and allowed to come to equilibrium. What would happen to equilibrium if additional SnO2(s) is subsequently added? Concentrations of reactants would increase. Concentrations of products would increase. There would be no change to equilibrium concentrations. Concentrations of reactants and products would increase. Question 19 2 points Saved Which of the following could be considered a perfectly ordered system? • A crystal at O K A single molecule of helium gas. A single molecule of hydrogen gas. Diamond buried deep in the earth's crust. Bauxite after purification. Dry ice. Question 20 2 points Saved What is the standard entropy change for the following reaction at 25.0 °c: 200(g) + O2(g) 2002(g) (Enter only a number: do not enter units. Units are J/K.) 2 points Saved Question 21 For the reaction A + B . C + D. the value of enthalpy is positive and the value of entropy is positive. Which of the following statements is correct. 6.pdf Standard Thermobat...doc StandardThermoDat....doc Afficher tous les téléchargements... RP Chapter 11.doc w PS EN 02:28 06/12/2015
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