If "white" means that it is silver in color, there are at least 3 possibilities:
# The coin was dipped in acid to remove its copper plating, exposing the zinc core. In this case it's considered damaged and is worth only face value. # Someone plated the coin with yet another layer of metal. Again, worth 1¢. # The coin failed to go through the plating process at the Mint, so it never had a copper plating to begin with. You have to hope for this one because it could retail for up to $100 or so.
Unfortunately there's no way to tell without seeing the coin. You'll need to have it appraised by someone who is experienced in error coins.
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If you have any tarnished pennies in your penny jar, you can easily clean them in vinegar. If you leave your pennies in white vinegar and salt for about 30 minutes and they will come out shiny and pretty clean. Be sure to rinse the vinegar off.
There's no "white metal" penny from either the US or Canada. If you're referring to a US cent, since mid-1982 they've been made of copper-plated zinc. If the plating were absent the zinc core would have a silver-white color. Unfortunately it can be difficult to tell if the plating is missing due to a mint error or the coin being dipped in acid, so you'd need to have the coin inspected by a dealer who specializes in US error coins.
The probability of picking white is equal to the number of white objects divided by the total number of objects (both white and non-white), assuming that all of the objects are identical other than color. In Geometry, the probability of landing on a white space is the area of the white space divided by the total area.
1/2 Because there is 2 white counter and 1 black and there is a chance you will get white. But a probability getting white is that there is 2 white counters. SM
It all depends. Light appears white and it contains all of the colors in the spectrum. White paint is made with a pigment, usually titanium, to create white.