Which of the following metals could really be used as sacrificial anodes for iron (Fe2+(aq) + 2e−↔Fe(s), E0 =-0.44V )? A) Aluminum F) Lead B) Tin G) Copper C) Zinc H) Nickel D) Sodium I) Lithium E) Magnesium J) None of the above Enter all that apply in alphabetical order (e.g. AB, ABDF, etc.) Hint: Learn what a sacrificial anode is exactly, then determine which metals have appropriate "oxidation" potentials to be sacrificial with respect to iron. Then exclude any metal which is too reactive to be stable, or which forms a protective oxide layer quickly and ceases to be oxidized more easily than iron.
Which of the following metals could really be used as sacrificial anodes for iron (Fe2+(aq) + 2e−↔Fe(s), E0 =-0.44V )? A) Aluminum F) Lead B) Tin G) Copper C) Zinc H) Nickel D) Sodium I) Lithium E) Magnesium J) None of the above Enter all that apply in alphabetical order (e.g. AB, ABDF, etc.) Hint: Learn what a sacrificial anode is exactly, then determine which metals have appropriate "oxidation" potentials to be sacrificial with respect to iron. Then exclude any metal which is too reactive to be stable, or which forms a protective oxide layer quickly and ceases to be oxidized more easily than iron.
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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Which of the following metals could really be used as sacrificial anodes for iron (Fe2+(aq) + 2e−↔Fe(s), E0 =-0.44V )?
| A) Aluminum | F) Lead |
| B) Tin | G) Copper |
| C) Zinc | H) Nickel |
| D) Sodium | I) Lithium |
| E) Magnesium | J) None of the above |
Enter all that apply in alphabetical order (e.g. AB, ABDF, etc.)
Hint: Learn what a sacrificial anode is exactly, then determine which metals have appropriate "oxidation" potentials to be sacrificial with respect to iron. Then exclude any metal which is too reactive to be stable, or which forms a protective oxide layer quickly and ceases to be oxidized more easily than iron.
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