Which, If Any, of the Following Metals Would Be Capable

question 5

Multiple Choice

Which, if any, of the following metals would be capable of acting as a sacrificial anode when used with iron pipe? E°_Fe = −0.44 V; all E° values refer to the M²⁺/M half-cell reactions.

• A)copper, Cu, E° = 0.15 V
• B)cobalt, Co, E° = −0.28 V
• C)chromium, Cr, E° = −0.74 V
• D)tin, Sn, E° = −0.14 V
• E)None of these metals would be capable of acting as a sacrificial anode with iron.

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Definitions:

Mediator

A neutral individual who facilitates negotiation and agreement between disputing parties without providing legal judgment.

Critical Thinking Skill

The ability to analyze facts, generate and organize ideas, defend opinions, make comparisons, draw inferences, evaluate arguments, and solve problems.

Inductive Reasoning

A method of reasoning in which the premises are viewed as supplying some evidence, but not full assurance, of the truth of the conclusion.

Bloom's Taxonomy

A hierarchical classification of the different levels of thinking skills, ranging from simple recall of facts to complex evaluation and creation.