Ni(s)
Ni(s)
In a nickel and copper electrolytic cell, nickel would likely be the anode since it typically undergoes oxidation to release electrons into the external circuit. Copper, on the other hand, would be the cathode where reduction reactions occur.
Ni(s)
Ni(s)
-0.59 V
Both nickels and dimes are composed of Copper and Nickel. A dime, however, is 91.67% Copper and 8.33% Nickel, while a nickel is 75% Copper and 25% Nickel. Since Copper is a bit denser than Nickel, and a dime contains relatively more Copper, than a dime would be denser than a nickel.
erm....nickel Not quite ... US nickels are actually made from an alloy of only 25% nickel, the rest is copper. Canadian nickels were once pure nickel, but in recent years they've been made of steel because the price of nickel rose to the point where the amount needed would cost more than five cents. Copper. The mix is 75% copper and 25% nickel.
The 2006 quarter is composed of a core of pure copper with outer layers of copper-nickel. If there was truly no copper then there would be no coin. If the usual copper line is missing from the edge of the quarter it is not because there is no copper in it but because as the blank quarter was stamped out of the sheet of metal, the outer layers containing the nickel were "smeared" over the edge of the blank quarter by the cutting die and concealing the customary copper band. Scraping the edge of the coin would reveal the copper.
Computers are made of various materials depending on the price, age and size of your computer. Electronic wires would be copper, gold in some places. Plastic casing, copper oraluminium alloy heat-sink etc.There might be nickel in some computers but nickel is not a principal material.
If there were one its value would be spectacular, but all nickels except for the famous "war nickels" of WWII are made of 75% copper and 25% nickel.
I would think heat conveys much like electricity, the greater the number of "free' electrons the less resistance to the heat , therefore copper would be faster then the other three choices.
Except for special "war nickels" minted from late 1942 to 1945, all US nickels are made of an alloy of 25% nickel and 75% copper. However your coin could not be a Liberty Head nickel. They were minted from 1883 to 1912. A 1941 nickel would be a Jefferson nickel.
A nickel, in American usage, is a five-cent coin struck by the United States Mint. Composed of 75% copper and 25% nickel, the piece has been issued since 1866.
Well,bronze is a mixture of copper and other various metals. Copper with zink - Brass; Copper with tin - Phosphor bronze; Copper with aluminum - Aluminum bronze; Copper with silicon - Silicon bronze; Copper with nickel - Copper nickel; There are more, but these are the most common. Hope this is what you were looking for.
A 1975 nickel struck with nickel and copper swirled together is known as a "mint error" or "off-metal error." The value of such a coin can vary depending on its condition and the level of collector interest, but it could be worth more than face value to a coin collector or error coin enthusiast. On average, these types of errors can fetch anywhere from a few dollars to several hundred dollars.
At 1400C Ni-50Cu alloy is in the liquid state and at 1200C it is in a single-phase solid state, having the face-centered cubic (FCC) crystallographic structure. Alojz Kajinic, Ph.D. http://www.calphad.com/
One U.S. dollar in 1971 would be about the same as $5.62 in 2012.