Vinegar contains Acetic acid that reacts with the copper in the penny.
the salt will dissolve in the vinegar and the penny will get really clean well if it dirty
Vinegar is a weak acid. If I remember my chemistry lessons of 40+ years ago correctly the action of an acid on a dirty penny should produce some sort of salty substance and water and the penny will then appear clean.
The vinegar and salt in the ketchup will remove most of the dark tarnish on a darkened or dirty copper penny (you can accomplish the same effect more quickly using just a small dish of vinegar and salt). However, the penny will "clean up" with a slightly beige-pink or rosy color, significantly not quite the color of a shiny new penny.
you should clean a penny wit Lemon Juice.
Yes.
vinegar has an acid in it that dissolves microscopic particles only found on certain matals.
If you have any tarnished pennies in your penny jar, you can easily clean them in vinegar. If you leave your pennies in white vinegar and salt for about 30 minutes and they will come out shiny and pretty clean. Be sure to rinse the vinegar off.
yes because all of the chemicals in the sodas can make a compound to clean the dirty penny!
Because its acids clean the penny
White vinegar does a fine job.
Vinegar is acid.. Soda is sugar and carbonation.