The dark brown color of a penny is most likely oxidation, which occurs when the
copper in the penny comes in contact with oxygen. Since the average penny ...
The pennies are dirty from being used, but there is more causing them to dull. ...
But this isn't permanent, you can clean them and make them shiny again!
Put about 5 pennies into the bowl and count to 10 slowly. Take out the ... Do other
amounts of salt make a difference in the chemistry of the experiment? Science ...
Dirty pennies have a variety of causes. penny graph image by RT from Fotolia.
com. There are currently over 130 billion pennies circulating in the United States.
If the eraser is too hard, it can leave deep scratches in the penny. Place a dirty
penny on a clean cloth and rub gently in a circular motion with the eraser. Flip the
Here are five ways to make your pennies bright and shiny again. Not only will you
spend ... First, lay your dirty penny on top of a piece of paper or clean cloth.
Nov 3, 2015 ... A chemical reaction takes place that makes a molecule called copper oxide – that
is the dirty stuff that you see on the penny. This “stuff” is often ...
The penny looks weird now huh? A dull pinkish color… Now make a concoction
out of baking soda and a little water to form a paste. Rub this compound all over ...
WHAT DOES THE ACID DO WHEN IT CLEANS THE PENNY? BECAUSE I ... The
copper oxide makes the pennies look dirty, but they are really not. When the ...
www.ask.com/youtube?q=What Makes Pennies Dirty?&v=H4N-iGvYrbM
Sep 9, 2012 ... In this video we clean pennies with vinegar and salt. Just mix together some
vinegar with enough salt to make a saturated solution. The apply ...