Learn about the chemistry of metals from HooplaKidzLab by using chemistry to clean pennies and oxidize them! Take out the pennies and rinse them out in some water. Admire their shininess! There is some pretty fancy chemistry going on in that little bowl of yours! Chemistry cleans pennies!
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We use Singapore pennys
Your experiment worked and I had an old dirty 1938 coin looked like government made right out of its place
This will work with copper coins. Make sure to check if your coins are 100% copper.
For example, if they have zinc in them, they'll respond differently to the mixture.
Pennies and nuts
Is this an acid-base reaction? Please reply
Pesos!
skip to 2:23 for the green pennies
Whut…? I'm from Vietnam!! I ain't have any coins!!!
Crusty coins and crusty fingers
i tryed this and tge coins changed back to the same dirty coin
mexico only
I put mines and it did not work and I put more salt and vinegar but still it did not work I gave up
So we can make malachite gemstones now.?!
we tried the experiment and most of our pennies are clean, but we still have some with spots.
i have 1941 and 1955 american wheat pennies
but not all came good
I used Singapore coins
n0t cool
UGH.
i used pakistan coins
cents
ay yos costa rica coins ok
I used øre
I use Phlippine Peso
So awesome
We jus kr in norway
why have you got 2pences in as well?
Hi I used indian rupees to do this and it works
I use some € ,cents and£
(palimpsests). In the XIII-XV centuries in