Copper atoms can combine with oxygen atoms from the air to make a molecule
called copper oxide. The pennies looked dull and dirty because they were ...
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!
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!
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 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.
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.
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 ...
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 ...
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 ...
How to Clean and Polish Dirty Pennies (The Chemical Free Way) .... so other
metals are generally added to make gold sturdy - that "other" usually tarnishes ...