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 ...
Dirty pennies; White vinegar; Table salt; Shallow glass or plastic bowl. How to:
Put a couple of ... It's the same reaction that makes the Statue of Liberty green!
10 dirty pennies; 4 tablespoons lemon juice; 8 tablespoons vinegar; 1 teaspoon
salt; small bowl (not metal!) ... The copper oxide makes the pennies look dirty.
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
The oxygen in the air and the copper in the pennies form an oxide that coats the
pennies and makes them look dirty. The acids (usually vinegar - acetic acid) ...
www.ask.com/youtube?q=What Makes Pennies Dirty?&v=5hQqYLrPuAk
Apr 6, 2011 ... This instructional video is a suitable time-saver that will enable you to get good at
science cool experiments. Watch our short video on How To ...
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 ...
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 ...