what does tarnished mean? what causes metal to tarnish
Answers
Answered by
3
Answer:
Tarnish is a thin layer of corrosion that forms over copper, brass, aluminum, magnesium, neodymium and other similar metals as their outermost layer undergoes a chemical reaction. ... It often appears as a dull, gray or black film or coating over metal. Tarnish is a surface phenomenon that is self-limiting, unlike rust.
Answered by
1
Answer:
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.
Similar questions