Simply put, coke is acidic on the pH scale. If youv don't remember what the pH scale is, it is a measure of how acidic or alkaline a substance is. Coke is about 3 on the pH scale, making it decently acidic (just so u have a comparison distilled water is 7 on the pH scale which is neutral). In short acid eats away at metals while alkaline eats away at protein. So when calcium and zinc build up on your penny soaking it in coke will eat away at the metals built up, leaving it nice and shiny.
Side note: alkaline pH substances eat away at proteins so that's why we use high alkaline products to clean our sinks and toilets.
because of the phosphoric acid eats away at the corrosion on the penny
and the Pepsi contains the citric acid
yes but not as much as ketchup but cola has enough acid to clean a penny
Because of the acid and carbonation.
Coke has a lot of acid in it.
because of the acid
the bubbles form
Fruit punch does clean pennies the best? You can't clean pennies with orange juice because it doesn't clean it.
yes
it tjt
A nail soaked in lemonade looks clean if it has rust. It will be cleaner that it is normally.
no, lemon juice is better to clean a pennie
its is good for cleaning with
yes, it does
yes
acid
yes
Mostly as I know, lemon juice or vinegar can be used to clean copper pennies. You can let soak in for a while to clean them. Good luck in cleaning them!