Chemistry, 13.10.2020 21:01, cheergirl2133

The atoms on the surface of a metal tend to react with the oxygen in the air and form an oxide coating. This coating, or tarnish, appears dull and less shiny, and it decreases the ability of a metal to react. Did you observe this? Explain.

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The atoms on the surface of a metal tend to react with the oxygen in the air and form an oxide coati...