Al I know is that the answer is not calcium oxide.
2006-11-01 06:31:13 · 5 answers · asked by pgw410 3 in Education & Reference ➔ Homework Help
I think that is the same reason the Statue of Liberty is green, her copper rusted and turned green. What is the name of that proccess?
2006-11-01 06:48:46 · update #1
Cuperous(sp) oxide, commonly referred to as patina.
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2006-11-01 06:36:45 · answer #1 · answered by odu83 7 · 1⤊ 1⤋
Very simply it is 'oxidation'.
Oxidation can be used when ever oxygen combines with a metal to form its' "rust"
The new chemical (green stuff) is indeed 'copper oxide'.
. . . and that is what happened to the Statue of Liberty.
Get an "A".
2006-11-01 20:26:47 · answer #2 · answered by teachr 5 · 0⤊ 1⤋
The term 'cupreous' is used to designate all metals that consist of copper or alloys that are predominantly copper, such as bronze (an alloy of copper and tin) and brass (an alloy of copper, zinc, and often lead). The term does not imply a valence state as does cupric-divalent copper or cuprous-monovalent copper. The cupreous metals are relatively noble metals that frequently survive adverse conditions, including long submersions in salt water that will often completely oxidize iron. Cupreous metals react with the environment to form similar alteration products, such as cuprous chloride (CuCl), cupric chloride (CuCl2), cuprous oxide (Cu2O), and the aesthetically pleasing green- and blue-colored cupric carbonates, malachite [Cu2(OH)2CO3], and azurite [Cu3(OH)2(CO3)2] (Gettens 1964:550-557). In a marine environment, the two most commonly encountered copper corrosion products are cuprous chloride and cuprous sulfide. The mineral alterations in copper alloys, however, can be more complex than those of pure copper.
2006-11-01 14:37:01 · answer #3 · answered by quatt47 7 · 0⤊ 2⤋
copper oxide. But copper does not rust. Iron rusts. Most metal deteriroation can be attributed to oxidation. Iron oxide is called rust and effects steel and any iron alloy.
2006-11-01 14:35:48 · answer #4 · answered by Capt 5 · 0⤊ 1⤋
Cupric Oxide
There are two forms of cuprous oxide. Cuprous oxide ( copper (I) oxide Cu2O) is found in nature as cuprite and formed on copper by heat. It is a red color crystal used as a pigment and fungicide. It is used as an antifouling agent for marine paints. But it is not used on vessels with aluminium hulls. The copper is incompatible with aluminium. Cupric oxide ( copper (II) oxide CuO) is a black crystal. It is used in making fibers and ceramics, gas analyses and for Welding fluxes.
Good luck...
2006-11-01 14:37:19 · answer #5 · answered by P!ss Ant 5 · 0⤊ 1⤋