Exam4.pdf 10. Which member of each pair of metals is more likely to corrode (oxidize)? (Ca(hn) v(hn) IN(S)IN (a) (A) Mg or Cu (B) Fe or Zn (C) Ag or Pb 11. If a 2.5 A current flows through a circuit for 40 s, how many coulombs of charge moved through the circuit? 12. Consider two processes: sublimation of I2(s) and melting of I2(s) at the same temperature (Note: the latter process can occur at the same temperature but somewhat higher pressure). (A) I2(s)→I2(g) and (B) I2(S) L2(1) Is AS positive or negative in these processes? In which of the processes will the magnitude entropy change be greater? An important source of copper is from the copper ore, chalcocite, a form of coppe sulfide. When heated, the Cu2S decomposes to form copper and sulfur described following equation: Cu2S(s) → Cu(s) + S(s) in decomposition of Cu2S(s). (use data from Appendix

Exam4.pdf 10. Which member of each pair of metals is more likely to corrode (oxidize)? (Ca(hn) v(hn) IN(S)IN (a) (A) Mg or Cu (B) Fe or Zn (C) Ag or Pb 11. If a 2.5 A current flows through a circuit for 40 s, how many coulombs of charge moved through the circuit? 12. Consider two processes: sublimation of I2(s) and melting of I2(s) at the same temperature (Note: the latter process can occur at the same temperature but somewhat higher pressure). (A) I2(s)→I2(g) and (B) I2(S) L2(1) Is AS positive or negative in these processes? In which of the processes will the magnitude entropy change be greater? An important source of copper is from the copper ore, chalcocite, a form of coppe sulfide. When heated, the Cu2S decomposes to form copper and sulfur described following equation: Cu2S(s) → Cu(s) + S(s) in decomposition of Cu2S(s). (use data from Appendix

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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