Iron objects corrode when exposed to water and oxygen, but not when they are kept dry. Aluminum objects do not appear to corrode under either of these conditions. Which of the following best explains these observations? Iron is more reactive because it is paramagnetic, whereas aluminum is diamagnetic. Iron is a metal but aluminum is a semiconductor. When a metal is heated, cations vibrate and interfere with the electron movement. When a semiconductor is heated, more electrons are freed to move through the lattice. Iron is a metal but aluminum is a semiconductor. Metals consist of cations in a sea of mobile electrons that can carry current. Semiconductors have a few mobile electrons. Aluminum is a better Lewis acid than iron is, so it is more likely to gain electrons (get reduced) than to lose electrons (get oxidized) Iron corrodes because of an electrochemical reaction that requires H2O and 02. Aluminum forms a thin oxide coating that prevents further reaction.

Iron objects corrode when exposed to water and oxygen, but not when they are kept dry. Aluminum objects do not appear to corrode under either of these conditions. Which of the following best explains these observations? Iron is more reactive because it is paramagnetic, whereas aluminum is diamagnetic. Iron is a metal but aluminum is a semiconductor. When a metal is heated, cations vibrate and interfere with the electron movement. When a semiconductor is heated, more electrons are freed to move through the lattice. Iron is a metal but aluminum is a semiconductor. Metals consist of cations in a sea of mobile electrons that can carry current. Semiconductors have a few mobile electrons. Aluminum is a better Lewis acid than iron is, so it is more likely to gain electrons (get reduced) than to lose electrons (get oxidized) Iron corrodes because of an electrochemical reaction that requires H2O and 02. Aluminum forms a thin oxide coating that prevents further reaction.

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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