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Pennies are made, or at least coated, with Copper and that copper can oxidize and turn green. Newer pennies have an alloy metal that is supposed to reduce this chemical action.

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15y ago

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How does a copper penny turn green?

oxygen.


What liquids make a penny green?

A penny can turn green when exposed to acidic liquids like lemon juice or vinegar, which cause a chemical reaction with the copper in the penny to create a greenish patina. Saltwater can also cause a copper penny to turn green over time due to oxidation.


Why do penny turn green?

The pennies turn green because they are open to the air, because they contain copper, and because copper turns green when oxidized.


Why is the staue of Liberty green not brown like a penny?

the Statue of Liberty is green because it has been there for a long time. Since metal rusts, the Statue of Liberty also rusted. In fact, it rusted enough for it to turn green. If a penny rusts enough, it will also turn green.


What happens to a penny when you soak it in bleach?

it would turn a dark color green


How does a penny turn green?

Copper turns green because of sulfur pollution in the air, forming copper sulfide.


How fast will a penny turn green?

A penny can turn green due to the oxidation process when exposed to air and moisture. The speed of this process can vary depending on the conditions it is exposed to, such as humidity level and presence of other chemicals. In general, it can take several weeks to several months for a penny to turn green.


Why does a penny turn green in water?

A penny turns green in water due to a chemical reaction between the copper in the penny and the oxygen in the water. This reaction forms a layer of copper oxide on the surface of the penny, giving it a greenish tint.


If the green color of the copper coating that covers the statue of liberty is different from the color of a typical copper penny what caused the statue of liberty copper coating to turn green?

Acid in the rain reacted with the copper to turn it green. That is why there is sometimes green on pennies. Acid in the rain reacted with the copper to turn it green. That is why there is sometimes green on pennies. Acid in the rain reacted with the copper to turn it green. That is why there is sometimes green on pennies. Acid in the rain reacted with the copper to turn it green. That is why there is sometimes green on pennies.


How can you turn copper green?

leave it water for about a week or longer, how long it takes depends on size, i would personally start with a penny.


Is a copper penny turning green a chemical change?

You can also turn pennies and some other coins green by letting them sit overnight in a paper towel soaked in vinegar. and if you want to clan pennies to shine, put them in a cup of vinegar and salt dissolved. (I once tried cleaning them with a pinch of kosher salt instead and it dug a hole through the penny! -NOT RECOMENDED!!!)


What makes a penny turn green?

The copper metal oxidizes from exposure to air and moisture, forming a coating of copper carbonate.It an also help crops