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When a penny is new, it's bright and shiny, but like most other metals, after oxidization (exposure to oxygen) or in the presence of moisture or salts, it can be covered by a dull oxide coat.
Coca-Cola is 0.055% phosphoric acid (this contributes to the zingy taste and fizziness). The phosphoric acid in Coke removes the oxide coat on the pennies, thereby leaving the metal shiny.
Remember though that you should NEVER try to clean a collectible coin. Cleaning is OK for ordinary coins you get in change, but chemicals damage the outer surface of a coin and reduce its value if it's collectible.
What else can I help you with?
What happens if you soak a penny in hand sanitizer?
A very clean penny
What is black when its clean and whit when its dirty?
The answer to the riddle "What is black when it's clean and white when it's dirty?" is a chalkboard. When a chalkboard is clean, it appears black; however, when you write on it with white chalk, it becomes "dirty" and takes on a white appearance.
Does soda clean a penny?
The acids in soda clean off coins.
If you drop soap on the ground is the soap dirty or is the floor clean?
If you drop soap on the ground, the soap is dirty AND the floor is clean.
What black when its clean but white when dirty?
Blackboard
Does coke make a penny dirty?
cuz the soda is dark and that's how the penny gets dirty thank you
Can coke clean a penny better than sprite?
coke cleans penny better
How do you clean a penny in coke?
To clean a penny with coke, simply drop the penny into a small bowl of coke and let it soak for a few minutes. Then, scrub the penny gently with a cloth or toothbrush to remove any dirt or tarnish. Rinse the penny with water and dry it with a clean cloth.
Can coke clean a penny?
No, Coke+penny=explosionBOoM!Don't try itDon't expect to see fireworks. The penny will not explode. In fact it WILL clean the penny a little.
What acid is there in coke that helps clean a penny?
This is the phosphoric acid.
Can sprite water Dr pepper or 7 up clean a dirty penny?
yes because all of the chemicals in the sodas can make a compound to clean the dirty penny!
How do you melt a penny in coke?
it doesnt melt, but it gets very clean!
Why does coke clean a penny?
Long story short, seeing as coke is very acidic, the acid will dissolve the dirt.
Why can vinegar clean a dirty penny?
Vinegar contains Acetic acid that reacts with the copper in the penny.
How does acetic acid clean a dirty penny?
the acidity breaks into the dirty molecules and cleans it off
What product cleans a penny better?
Lemon juice and salt can clean a dirty penny alsovinegar and salt
What substances can you use to clean a penny?
What's crazy is that you can use anything to clean a penny. Water is probably the worst. Surprisingly, orange juice and Coke are very effective.(:
