A penny is made up of metals - copper and zinc both of which have lustrous physical properties
Most juices contain a mild acid. It is the acid tha makes a penny shine.
Acetic acid is the ingredient in vinegar that remove the oxides from pennies and makes them shiny again.
I donno. Research it on the internet, dude!!
the heat in outer space makes it shine and be hot
penny
Reflection of sunlight
My sperm cells
A new penny is partially made from bright, shiny copper. But after a while, it loses its shine because the copper mixes with the oxygen in the air and makes a coating called an oxide. When you put the penny in lemon juice, the acid in the lemon chemically removes the oxide, and you're left once again with a bright copper penny.
i know a penny can rust, but im not sure what makes a peny rust! i, too, hope to find out!
100 penny makes a dollar. Every penny counts, my friend!
I have done this experiment on a penny. Yes it works, but it only works sometimes. I would give this three stars. If you want to shine coins, then you will have to find something else.
The acidity in Tapatio hot sauce, mainly from vinegar, can help to dissolve the tarnish on a penny. Vinegar is a mild acid that can react with the copper oxide on the penny's surface, making it shine again.