Why does lemon juice clean pennies?

Pennies are made out of a metal called copper. The copper mixes with oxygen, the same gas that we breathe. This cause something called oxidation and makes the penny look dirty. Lemon juice has acid in it that removes the dirty color or oxidation and makes the penny nice and shiny again!
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Why does lemon juice clean pennies better than vinegar?

Vinegar has a pH level of 3.0, while lemon juice has a pH level of 2.3. This means that lemon juice is a slightly stronger acid than vinegar. The stronger the acid, the better it will clean copper pennies.
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Does lemon juice clean copper?

Lemon juice is a good cleaning choice for the copper that is a part of your kitchen updates. It dissolves copper oxide, which reacts with copper to cause tarnishing. Use it on sinks or more difficult spots or stains. Combine equal parts salt and non-iodized cornstarch with enough lemon juice to make a paste.
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What kind of juice cleans pennies best?

Shake and stir each of the cups to allow the liquids to have an effect on the pennies. After 10 or so minutes, remove the pennies from the cups, dry and compare against other liquids What happens? The lemon juice cleans the pennies the best!
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What does lemon do to copper?

The citric acid present in the lemon or tamarind neutralises the basis copper carbonate and dissolves the layer. That is why, tarnished copper vessels are cleaned with lemon or tamarind juice to give the surface of the copper vessel its characteristic lustre.
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Lemon Experiment: How to Clean a Penny



Will lemon juice clean pennies?

Pennies are made out of a metal called copper. The copper mixes with oxygen, the same gas that we breathe. This cause something called oxidation and makes the penny look dirty. Lemon juice has acid in it that removes the dirty color or oxidation and makes the penny nice and shiny again!
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Is it OK to put lemon in copper bottle?

Can lemon juice be stored in copper bottle? It is recommended that you only store still water in your bottle. Copper, just like any other metal, could react with acidic liquids (anything with a pH of less than 7) or milk based fluids.
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What cleans pennies the fastest?

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.
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Why do pennies turn black?

When oxygen binds with copper, they form a new molecule known as copper oxide. Copper oxide is brownish or sometimes black in color (depending on other things in the penny's environment). 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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Why does Coke clean pennies?

The soda cleans the pennies because it contains phosphoric acid. Phosphoric acid breaks down the copper oxygen compound and causes a new layer of the copper to be exposed.
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Can Coca Cola clean copper?

Copper Cleaner

Restore that bright sheen by soaking the copper bottom in a pan filled with Coke for about an hour. The acid in the Coke makes the copper look shiny and new—without scrubbing. This cleaning trick works on plenty of other household copper accents as well.
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Why do pennies turn black in vinegar?

Copper oxide dissolves in water, but it usually takes a long time. The combination of vinegar (a weak solution of acetic acid), and table salt (sodium chloride) helps to dissolve the copper oxide, and also forms the blue copper(II) ion, which is soluble in water. The penny becomes shiny again!
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What happens when you clean a penny?

According to coin experts, cleaning any potentially collectible coins might cause them to lose value. Using chemical cleaners or scrubbing the coins could leave scratches and marks that will be easy for a skilled appraiser to pick up on.
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Does Coca Cola clean coins?

Yes, that refreshing can of Coke that you like to drink by the pool can also clean coins. Coke's phosphoric acid can clean the oxides that cause tarnish and corrosion.
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Do vinegar and lemon juice have the same pH?

Vinegar is a solution of acetic acid in water, usually at about 5 percent, with a pH of 2.4. Lemon juice contains ascorbic acid and citric acid, with a pH of about 2.3.
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Is it OK to clean old pennies?

This is never advised for the general public. There is no benefit to attempting to clean a collectible coin. Copper never re-tones to its original color and look anyway. Put down the polish before you destroy something historical and throw away a fortune.
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Why do pennies turn gold?

When the zinc-coated penny is heated, the penny becomes gold in color. The gold color is due to the zinc migrating through the copper to convert to the alpha-form of brass alloy which has a zinc content of less than 35%. This form of the brass alloy is a golden color.
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What happens when you put a penny in salt water?

If the penny in your salt water solution got shiney, it obviously underwent a chemical reduction reaction. The copper oxide was reduced to shiney copper. These types of chemical reactions are called oxidation reduction reactions. Something gives up oxygen (or something similar) and is reduced.
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How much is a 1944 penny worth?

According to the NGC Price Guide, as of February 2023, a Wheat Penny from 1944 in circulated condition is worth between $7500 and $33500. However, on the open market 1944 STEEL Pennies in pristine, uncirculated condition sell for as much as $200000.
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How do professionals clean pennies?

Hydrogen Peroxide. Hydrogen peroxide can prove effective in removing various materials, including organic material. To clean using this method, place your coins in a small plastic container, fill with enough hydrogen peroxide to cover, and soak for 24 hours.
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Are there rare pennies?

The world's rarest and most coveted pennies are valued at more than $100,000 and some even go for $2 million. Rarity is a significant factor in determining a penny's worth. The condition of the coin is another. But demand is the factor that drives coin values the most.
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Why we should not keep copper bottle in fridge?

There is no harm in filling the copper bottle with refrigerated water but we advise against storing the copper bottle in the fridge. The reason is that the refrigeration process could undo all of the benefits and positive properties such as alkalinisation that can be gained by storing the bottle at room temperature.
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What are the symptoms of copper poisoning?

You could get severe toxicity from ingesting large amounts of copper salts through your skin. Copper can work its way through your internal organs and build up in your brain, liver, and lungs. People who have copper toxicity can become very unwell. Nausea and vomiting are two symptoms of it.
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