Its oxidized copper, basically the copper is "rusting"
A mixture of copper salts and skin oils. It is harmless and forms naturally from a reaction between copper in the metal alloy and salts in your sweat. Skin oils in the sweat mix with these copper salts, producing this green gooey stuff.
That green stuff that shows up on copper is called verdigris, and is also known as patina. In addition to making your penny green, it's also what makes the copper Statue of Liberty look green!The process by which verdigris is made is called oxidation. Most of the time, when copper oxidizes, it turns dark brown, like most pennies you see. When saltwater is added (like in somebody's sweaty pocket) the copper turns green instead.
It was copper. If it gets weathered by the wind to much and stuff, then it turns green!
It's called verdigris. The greenish cast from weathering of meatal with copper in it. [ vur de gree ]
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.
you can make copper stuff
The word is "oxidation", which in the case of copper is a three-step process where the copper oxidizes to copper oxide, then to cuprous or cupric sulfide, and then to copper carbonate. Copper carbonate is the green colored copper or patina that forms over time. The old name for this green patina is "verdigris".
copper tarnish and turn green because of present of iron in it.
Copper, monovalent: blue Copper, divalent, in halides: blue-green Copper, divalent, in non-halide compounds: green
Yes they do when you feed them fish they poo out fish. If you feed them green stuff they poo out green stuff
yes copper turns green when exposed to moist air for a long time as green metal is a mixture of copper hydroxide and copper carbonate 2CU+H2O+O2 --> CU(OH)2+CUCO3