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it's not. tell whoever told you that to go back to pre-school.
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∙ 11y ago
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Is cleaning a penny with vinegar and salt a physical or chemical change?
It is a chemical reaction and this is the correct way to spell penny!
Why does ketchup clean a penny better than vinegar?
Because ketchup has acid.
Who invented how to clean a penny with vinegar?
It's simply a chemical reaction of acetic acid and copper. It doesn't have a specific inventor.
What 4 substances clean a dirty penny the best?
i think that ketchup,lemon juice,vinigar,tomato juice is the best
How do you clean 1818 penny?
To clean any penny, try using ketchup and a toothbrush. After that, make a paste out of baking soda and water then lightly rubbing the penny with your thumb. For even better results, try using an eraser. Any type, it doesn't matter. Your penny should be nice and clean!
Is putting a penny in lemon juice a physical or chemical change?
physical reaction
Is a rusty penny an example of a chemical reaction true or false?
Yes. The rust on the penny indicates that a reaction between the penny and its environment has occurred. Since a new material was formed from this reaction (the rust) the reaction must be a chemical reaction.
Is dissolution of a copper penny in nitric acid a chemical reaction?
Yes. Dissolution of a copper penny would indeed be a chemical reaction.
Is cleaning a penny with vinegar and salt a physical or chemical change?
It is a chemical reaction and this is the correct way to spell penny!
What are chemical properties of a copper penny?
Bleaching and putting it into water and letting it rust
Is turning a penny gold a chemical or physical reaction?
Anything else then dropping it in molten gold is chemical
Why does ketchup clean a penny better than vinegar?
Because ketchup has acid.
In certain liquids does a penny rust?
Unless you have a penny made out of Iron, then no. It will not rust. The concept of rusting refers to Iron and Oxygen having a chemical reaction to made a new material.
Who invented how to clean a penny with vinegar?
It's simply a chemical reaction of acetic acid and copper. It doesn't have a specific inventor.
What happens when a penny comes in contact with carbon?
Nothing. There is no chemical reaction that occurs only between the elements carbon and copper.
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.
What will happen if you rub ketchup on a tarnish penny and wash it off with water?
i think the tarnish will come of the tarnish penny
