8) Identify oxidation. A) increase in oxidation number B) loss of electrons C) decrease in oxidation number D) gain of electrons E) both A and B 9) Consider the following reaction at constant P. Use the information here to determine the value of Assurr at 298 K. Predict whether or not this reaction will be spontaneous at this temperature. N2(g) + 2 O2(g) → 2 NO2(g) ΔΗ +66.4 kJ A) ASsurr = +223 J/K, reaction is spontaneous B) ASsurr = -66.4 J/K, reaction is spontaneous C) ASsurr = +66.4 kJ/K, reaction is not spontaneous D) ASsurr = -223 J/K, reaction is not spontaneous E) ASsurr = -66.4 J/K, it is not possible to predict the spontaneity of this reaction without more information. 10) Determine the cell notation for the redox reaction given below. Pb(s) + 2 H+ (aq) → Pb2+(aq) + H₂(g) A) Pb(s) | Pb²+(aq) || H+(aq) | H2(g) | Pt B) H+ (aq) | H₂(g) | Pt || Pb(s) | Pb2+ (aq) C) Pb(s) | H₂(g) || Pb2+(aq) | H+(aq) | Pt D) Pb2+ (aq) | Pb(s) || H2(g) | H+(aq) | Pt E) H₂(g) | H+ (aq) | Pt || Pb2+ (aq) | Pb(s)

8) Identify oxidation. A) increase in oxidation number B) loss of electrons C) decrease in oxidation number D) gain of electrons E) both A and B 9) Consider the following reaction at constant P. Use the information here to determine the value of Assurr at 298 K. Predict whether or not this reaction will be spontaneous at this temperature. N2(g) + 2 O2(g) → 2 NO2(g) ΔΗ +66.4 kJ A) ASsurr = +223 J/K, reaction is spontaneous B) ASsurr = -66.4 J/K, reaction is spontaneous C) ASsurr = +66.4 kJ/K, reaction is not spontaneous D) ASsurr = -223 J/K, reaction is not spontaneous E) ASsurr = -66.4 J/K, it is not possible to predict the spontaneity of this reaction without more information. 10) Determine the cell notation for the redox reaction given below. Pb(s) + 2 H+ (aq) → Pb2+(aq) + H₂(g) A) Pb(s) | Pb²+(aq) || H+(aq) | H2(g) | Pt B) H+ (aq) | H₂(g) | Pt || Pb(s) | Pb2+ (aq) C) Pb(s) | H₂(g) || Pb2+(aq) | H+(aq) | Pt D) Pb2+ (aq) | Pb(s) || H2(g) | H+(aq) | Pt E) H₂(g) | H+ (aq) | Pt || Pb2+ (aq) | Pb(s)

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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