A piece of magnesium can be attached to the iron hull of a boat to prevent it
Question:
A piece of magnesium can be attached to the iron hull of a boat to prevent it from rusting.
(a) Why is the magnesium called a sacrificial metal?
(b) How does the Mg keep the iron hull from rusting?
(c) Which can be thought of as the positive cathode, the Mg or the steel hull? Explain.
(d) Putting a block of Mg on a steel boat hull does not create a battery. Why not?
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a The magnesium is called a sacrificial metal because it sacrifices itself to protect the iron hull ...View the full answer
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Related Book For 
Introductory Chemistry Atoms First
ISBN: 9780321927118
5th Edition
Authors: Steve Russo And Michael Silver
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