What cause metal to tranish
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Tarnish is a product of a chemical reaction between a metal and a nonmetal compound, especially oxygen and sulfur dioxide.
It is usually a metal oxide, the product of oxidation.
The metal oxide sometimes reacts with water to make the hydroxide; and carbon dioxide to make the carbonate.
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Tarnish is a product of a chemical reaction between a metal and a nonmetal compound, especially oxygen and sulfur dioxide. It is usually a metal oxide, the product of oxidation. ... The metal oxide sometimes reacts with water to make the hydroxide; and carbon dioxide to make the carbonate.
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