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Tarnish occurs when silver reacts with oxygen or hydrogen sulfide in the air, moisture, skin oil from being handled, and other contaminants.

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Silver coins and sulfur?

Contact between silver coins and sulfur can cause tarnishing of the silver due to a chemical reaction between the two materials. Sulfur reacts with the silver to form silver sulfide, which appears as a black tarnish on the surface of the coins. It is best to keep silver coins stored in a cool, dry place away from sulfur-containing materials to prevent tarnishing.


Does pure silver tarnish?

Pure silver can tarnish but not as easily as Sterling Silver.


What chemical on the periodic table does not like coins or banknotes?

Sulfur (S) is known to tarnish silver coins and turn them black due to a chemical reaction. If silver coins come into contact with sulfur compounds in the air or on surfaces, it can cause them to tarnish quickly.


Why do some lotions and cosmetics tarnish silver on contact?

Because it contains Sulfur and sulfur reacts with the silver forming hydrogen sulfide, which causes the tarnish


Why causes gold jewelry to tarnish on skin corrosion?

Well, the gold it is tarnish natural; but is it's more tarnish if it's mix with silver or brance or lead or cooper.


Do gold coins change or tarnish?

No, gold does not tarnish.


What coins rusts?

All coins, even gold and silver, will tarnish, but rust is iron oxide, so only coins with iron in them will rust. The only ones I can think of are the steel 1943 US cents and some European Coins from the WW2 era.


What is difference between oxidized silver and sterling silver?

Oxidized silver is not necessarily sterling silver but sterling silver can be oxidized. Oxidation is a finish on silver, otherwise known as tarnish. Sterling silver can tarnish and silver plate can tarnish, too.


What is a silver white metal that does not tarnish?

Silver is a silver-white metal that does not tarnish easily due to its resistance to corrosion.


What part of speech is it in the sentence silver will tarnish if it is not polished often?

The word "tarnish" in the sentence "the silver will tarnish if it is not polished often" is a verb. It is describing the action of the silver in the sentence.


Why does silver tarnish?

Sterling silver tarnishes because when silver is exposed the air it causes chemical reactions and creates Silver Nitrate. This is what will leave black marks on your skin when you wear something made of silver.


What causes silver to tarnish in a dishwasher?

Silver tarnishes in a dishwasher due to the exposure to sulfur-containing compounds in the detergent or water. These compounds react with the silver to form silver sulfide, which appears as a dark tarnish on the surface of the metal. To prevent tarnishing, it is best to hand wash silver items with mild soap and dry them immediately after.