2006-08-27 14:10:58 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
I think so.
2006-08-28 00:21:13 · answer #1 · answered by Anry 7 · 2⤊ 0⤋
Not sure what chemicals are in your pennies. Here in the States we use metal, or minerals in ours. No chemicals. The metal composition of our coins was changed right about 1963, and to this day they still tweak it sometimes depending on the value of the metals used in producing the coin. IE when there is a large demand for copper, or nickle the composition changes.
2006-08-27 21:15:12 · answer #2 · answered by Anonymous · 0⤊ 0⤋
2009 bronze, according to the Presidential $1 Coin Act of 2005
1982–2008 97.6% zinc, 2.4% copper
1962–1982 95% copper, 5% zinc (about 3.04 grams)
2006-08-27 21:13:30 · answer #3 · answered by Anonymous · 0⤊ 0⤋
in 1982 the composition was changed from mostly copper to that of zinc.
2006-08-27 21:16:46 · answer #4 · answered by Anonymous · 0⤊ 0⤋
It's zinc on the inside with a coat of copper on the outside.
2006-08-27 21:17:01 · answer #5 · answered by Judas Rabbi 7 · 0⤊ 0⤋
They used to be all copper. During the WWII they were made of something else, like zinc. I'm not sure.
2006-08-27 21:13:30 · answer #6 · answered by Darby 7 · 0⤊ 0⤋
i can't remember but wouldn't that be alchemy?
2006-08-27 21:13:16 · answer #7 · answered by SST 6 · 0⤊ 0⤋