Any medium-strong acidic or alkaline will clean a penny.
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I don't know all of them, but a common one is mixing baking soda and vinegar and dropping the penny into the mixture during the reaction between the acid and the base. Thanks.
-Psymonkey21
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Alternatively, dropping it into a small glass of Coca-Cola will do the trink (you will have to leave it for a while. The same is true with vinegar, and lemon juice.
ManUtd77
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7 different pennies
The United States currently has five different types of pennies: the Lincoln Memorial penny, the Lincoln Bicentennial penny, the Shield penny, the Lincoln Union Shield penny, and the Lincoln Wheat penny.
medal
Many countries use a penny as a minor currency unit and it is likely that each one of these has a different density.
water gets cleaned with many different chemicals when it gets processed and sent to your tap at home, or put in bottles for you to drink.by a machine :)
Chemicals play a very influential role in the daily lives of many people. Chemicals clean surfaces like kitchen counter tops for example.
The answer will depend on pennies for which currency, in which country. Th UK penny - which is a penny has quite a different mass to a US penny which is not even a penny, but a cent!
4000 different chemicals are in one cigarette
most people would say it will clean the penny or desolve it but it's totaly false I've tryed it many times and it's never worked so it basikly won't do anything but give you a sticky penny
Chemicals play a crucial role in many processes and technologies. For example, in batteries, chemicals are essential to facilitate the transfer of electrons to produce electricity. In general, chemicals can interact with materials to create reactions that can make things work or function in various ways.
There are very many countries that use a penny as a minor currency unit and they have different sizes. You have chosen not to tell us which country and so it is impossible to answer the question.
how many centimeters is a penny