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Pennies are made of zinc plated with copper. Copper reacts with oxygen and water to form copper oxide. This is the tarnish you see on pennies that have been in damp conditions. The only U.S. coins that can truly rust are the 1943 zinc coated steel cents.
Wiki User
∙ 10y ago
Wiki User
∙ 13y agoWhen a penny turns green, the penny is not actually rusting. When copper reacts with acid, it forms a green substance on the penny called copper acetate. This process is a chemical reaction in which copper and acid are the reactants, and copper acetate is the product. This chemical reaction is very similar to the green substance that forms on the Statue of Liberty. The copper statue and acid rain reacted and created a substance called copper sulfate.
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∙ 12y agoWiki User
∙ 15y ago== == == == == == == ==
Wiki User
∙ 11y agoIt cleans it.
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Which liquid will rust a penny faster vinigar or salt water?
it will rust faster in vinegar
Why does iron rust in vinegar?
The acetic acid in vinegar attacks the iron and oxidizes it to rust.
What cleans water stains off of pennies?
Salt and vinegar. The vinegar cleans off all the different types of rust and build up off the penny, and the salt speeds up the process.
What causes vinegar to rust a nail?
vinegar contains acetic acid which releases hydrogen ions, so vinegar is acidic meanign it contains hydrogen ions. These acids make metals corrode (break down) the water in vinegar and oxygen in the air makes the metals with iron in them (since iron is the only metal that oxidizes, or rusts) form iron oxide which is the scientific name for rust.
What makes aluminum foil rust faster vinegar or water?
Actually, vinegar and saltwater makes it rust... it happened to me...
What will make a penny rust faster vinegar or water?
the chemacls in vinager makes the penny rust
What cleans a penny from its rust?
i think the vinegar will un rist a penny
Which liquid will rust a penny faster vinigar or salt water?
it will rust faster in vinegar
How can a penny rust the faster?
saltwater, regular water, and vinegar can all speedup the rusting of a penny
What liquid makes a penny rust?
vinegar, soda, and water after 2 weeks
A penny that rust in water or vinger?
make your question more clearer and i think it is vinegar
What type of liquid make a nail rust?
the type of liquid that causes a nail to rust is vinegar
What type of liquid will cause a penny a nail a paper clip and a sewing needle to rust faster?
bleach or vinegar
Why garlic in vinegar turns to green?
I turned white vinegar green by putting a 1969 penny in it for two weeks in the refrigerator. It turned green because of the copper in the penny reacting with the vinegar in a process called oxidization. The green was the copper oxide formed when the copper in the penny oxidized in the vinegar.
Why does iron rust in vinegar?
The acetic acid in vinegar attacks the iron and oxidizes it to rust.
Can milk rust a penny?
rust no. Well maybe a 1943 steel penny.
What cleans water stains off of pennies?
Salt and vinegar. The vinegar cleans off all the different types of rust and build up off the penny, and the salt speeds up the process.
