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Is cleaning a penny with vinegar and salt a physical or chemical change?
Cleaning a penny with vinegar and salt is a chemical change. The vinegar (acetic acid) reacts with the salt (sodium chloride) to form a chemical compound that removes the tarnish on the copper surface of the penny. This reaction changes the composition of the penny's surface, making it appear shiny and clean.
Why does ketchup clean a penny better than vinegar?
Ketchup contains both vinegar and tomato paste, which have acidic properties that help to dissolve the tarnish on the penny. The combination of the acidic ingredients in ketchup likely makes it more effective at cleaning compared to using vinegar alone.
Who invented how to clean a penny with vinegar?
The process of using vinegar to clean a penny is a common science experiment that demonstrates the chemical reaction between the acid in vinegar and the tarnish on the surface of the penny. There is no specific person who can be credited with "inventing" this method, as it is a simple and well-known technique in the realm of science education.
How can a green penny turn green?
A green penny can turn green when exposed to the elements, like oxygen and moisture, causing a chemical reaction with the copper in the penny. This reaction forms copper oxide, which is the green coating that gives the penny its green color.
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.
Is putting a penny in lemon juice a physical or chemical change?
Putting a penny in lemon juice would cause a chemical change because the lemon juice reacts with the copper in the penny to create copper oxide, which changes the chemical composition of the penny.
Is turning a penny gold a chemical or physical reaction?
Turning a penny gold is a physical reaction rather than a chemical reaction. This process involves coating the penny with a layer of gold, which changes its appearance but does not alter the chemical composition of the penny itself.
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?
Cleaning a penny with vinegar and salt is a chemical change. The vinegar (acetic acid) reacts with the salt (sodium chloride) to form a chemical compound that removes the tarnish on the copper surface of the penny. This reaction changes the composition of the penny's surface, making it appear shiny and clean.
Is salt and vinegar removing tarnish from a penny physical or a chemical change?
Removing tarnish from a penny with salt and vinegar is a chemical change. The reaction between the salt, vinegar, and tarnish on the penny results in the formation of new substances that remove the tarnish.
Why does ketchup clean a penny better than vinegar?
Ketchup contains both vinegar and tomato paste, which have acidic properties that help to dissolve the tarnish on the penny. The combination of the acidic ingredients in ketchup likely makes it more effective at cleaning compared to using vinegar alone.
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
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.
Who invented how to clean a penny with vinegar?
The process of using vinegar to clean a penny is a common science experiment that demonstrates the chemical reaction between the acid in vinegar and the tarnish on the surface of the penny. There is no specific person who can be credited with "inventing" this method, as it is a simple and well-known technique in the realm of science education.
How does lemon juice cleans a penny?
Quite well, if you apply a little elbow grease. Another good penny cleaner is ketchup.
