Often asked: What Cleans Pennies Better Science Project?

What cleans pennies fast?

Start by adding a quarter cup of white vinegar, or lemon juice, into a cup or glass. Mix a teaspoon of salt into the liquid by stirring until it is dissolved. Place your pennies at the bottom of the cup or glass so that they are not stacked on top of each other. Wait about five minutes and check your pennies.

How do you clean a penny experiment?

What You’ll Do

  1. Guess which liquid will make a penny shine.
  2. Set one penny aside.
  3. In one cup, pour enough vinegar to cover the penny.
  4. In the other cup, pour enough liquid soap to cover the penny.
  5. Wait at least ten minutes.
  6. Remove the pennies, rinse them in water, and rub them with a paper towel.
  7. Compare all three pennies.

What kind of juice cleans pennies best hypothesis?

Those tart little lemons work to remove copper oxide because they contain citric acid. Since lemon juice has the highest concentration of citric acid of any fruit, it works the best. Other juices that rank highly include lime, grapefruit, and orange juice.

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What will clean a penny?

For many pennies, one tablespoon (15 g) of salt in 1/2 cup (4 oz) of vinegar will get the job done. Stir the mixture to dissolve the salt. If you don’t have vinegar, use lemon or even orange juice. Copper oxide (the gunk on your pennies ) dissolves in weak acid, and that’s just what all three of these liquids are.

Does Coke really clean coins?

Coke and off-brand colas will quickly remove the tarnish. Just don’t drink the coke afterward. Coke contains phosphoric acid that cleans the oxides. Try a variety of citrus juices to see which works best or simply let your pennies soak in lemon juice.

Does hydrogen peroxide clean pennies?

Coin Cleaning Method #2 Hydrogen Peroxide is praised religiously by many as to being a great household ingredient for cleaning coins without causing any damage. Simply submerge coins into a container of Hydrogen Peroxide and just let soak for 24 hours.

Does vinegar and salt make hydrochloric acid?

When vinegar is mixed with salt, the acetic acid in the vinegar reacts with the sodium chloride or salt to produce sodium acetate and hydrochloric acid. The hydrochloric acid is a strong acid.

How do professionals clean coins?

Pour your distilled white vinegar into your shallow bowl. There should be enough vinegar to completely cover your coins. Gently place your coin or coins into the vinegar. Let your coins sit for at least 30 minutes.

How do you clean pennies with toothpaste?

Don’t use toothpaste – Toothpaste is extremely abrasive. It can make your coins appear shiny, but cause significant damage to the surface. Don’t use ketchup – You might have learned in science class that dipping a penny in ketchup can restore their shine.

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What cleans a coin the best?

Follow These Steps:

  1. In a jar, combine one cup vinegar (or lemon juice) and 1 tablespoon salt.
  2. Pour the solution into the plastic container.
  3. Add the coins in a single layer, so none of the coins are touching.
  4. When you remove the coins and wipe them with a cloth or paper towel, they should look shiny.

Does lemon juice clean pennies better than vinegar?

Ultimately, lemon juice will clean pennies better than vinegar, though both liquids are viable cleaning options for copper. This means that lemon juice is a slightly stronger acid than vinegar. The stronger the acid, the better it will clean copper pennies.

What substance cleans a dirty penny the best?

Copper oxide dissolves in a mixture of weak acid and table salt -and vinegar is an acid. You could also clean your pennies with salt and lemon juice or orange juice, because those juices are acids, too.

How can I make my pennies shiny again?

Vinegar & Salt The use of vinegar and salt to clean pennies goes way back. It works on the same principle as using ketchup (Ketchup contains vinegar, salt and tomatoes), but there is less rubbing involved. Mix up a concoction of vinegar and salt. Stir it around to dissolve the salt and then dump in your dirty pennies.

What causes shiny pennies to turn dull?

When oxygen binds with copper, they form a new molecule known as copper oxide. This is why most pennies you see look dirty or tarnished—it’s not actually dirt but copper oxide that makes them look so dull.

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Does rubbing alcohol clean pennies?

To soak your coins, you will create a bath using isopropyl alcohol and salt. It is important to note that each of these chemicals is acidic and abrasive. While they will do a great job of cleaning your coins, be careful of how many contacts they have with your skin.

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