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Because ketchup has acid.

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16y ago

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How does vinegar make a penny shine?

vinegar has an acid in it that dissolves microscopic particles only found on certain matals.


What happens to a dirty penny in ketchup?

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.


Can a vinegar and kitchup clean a penny?

Vinegar, yes, but not ketchup. Vinegar cleans it because it is an acid. Actually, the best thing to use is cola or lemonade and leave the penny in some cola or lemonade for 48 hours - it normally does the trick!


What 4 substances clean a dirty penny the best?

Vinegar, ketchup, lemon juice, and baking soda are substances that can effectively clean a dirty penny. Each of these substances contains acids or other compounds that can help break down the dirt and grime on the surface of the penny, restoring its shine.


What kind of liquid can clean a penny the best?

A mixture of vinegar and salt can clean a penny effectively because the acid in vinegar reacts with the copper oxide on the penny, while the salt acts as a mild abrasive to help scrub away dirt and grime. Alternatively, lemon juice or ketchup can also be used to clean a penny due to their acidic nature.


Why can vinegar clean a dirty penny?

Vinegar contains Acetic acid that reacts with the copper in the penny.


Can vinegar clean an oxidized penny?

Yes.


Why does taco sauce clean pennies?

The acid in taco sauce, such as vinegar, can react with the oxidized layer on the penny (copper oxide) and dissolve it, revealing the shiny copper surface underneath. This chemical reaction helps to clean the penny and restore its luster.


What liquid can clean a penny better?

A mixture of vinegar and salt or lemon juice and salt can effectively clean a penny by removing oxidation and dirt. These acids help dissolve the tarnish and reveal the shiny copper surface of the penny.


What will a penny do in vinegar after 30 minutes?

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.


Can sprite or vinegar clean the penny better?

Vinegar is more effective for cleaning pennies than Sprite. Vinegar contains acetic acid, which can help break down the tarnish on the penny, whereas Sprite may not be as effective due to its lower acidity level.


Why wont soda clean a penny as good as vinegar?

Vinegar is acid.. Soda is sugar and carbonation.