shiny brown
no such thing as cleaner
Acid in the rain reacted with the copper to turn it green. That is why there is sometimes green on pennies. Acid in the rain reacted with the copper to turn it green. That is why there is sometimes green on pennies. Acid in the rain reacted with the copper to turn it green. That is why there is sometimes green on pennies. Acid in the rain reacted with the copper to turn it green. That is why there is sometimes green on pennies.
vinegar
no they get cleaner with vineger at least that's what I know
Litmus turn color blue. Because of blue is the basic color.
Vinegar
A mixture of water, vinegar, and bleach is corrosive to most metals. If pennies are placed in it, the copper will oxidize. Rusting is a term only applying to the oxidization of iron, not other metals. The pennies will look a lot cleaner and the liquid will turn blue. If you leave the pennies in the mixture too long, holes may start to form in them.
pink
It will dissolve brass slowly. It can be used as cleaner, but it results in a reddish color. Rinse the brass parts with H2O2 may get back the original color, too much and it will turn greenish.
Purple
Basic color of litmus is blue. It turn blue when touched.
Blue, Because it's a cleaner. So it needs to be more base than acid. So, BLUE!