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
Red litmus turns blue when it comes into contact with a household cleaner containing ammonia. This color change occurs because ammonia is a base that reacts with the litmus paper, causing it to turn blue.
pink
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.
Pennies are made of zinc and other alloys with a copper coating, pennies made before 1964(or around this year) they were made of just copper. What you see on a penny is not rust but corrosion of the copper coating.
Purple
Red Litmus paper would turn blue. Most cleaners are basic. Glass cleaner generally contains ammonia (NH4) which is basic when in solution.
When blue litmus paper is dipped in window cleaner, it will typically remain blue. Most window cleaners are alkaline due to the presence of ammonia or other cleaning agents, which do not affect blue litmus paper. If the window cleaner were acidic, the blue litmus paper would turn red, but this is not common for standard window cleaners.
The acidic nature of citrus fruits such as lemon and lime juice helps to dissolve the oxidation on pennies, which makes them appear cleaner. The citric acid in these juices breaks down the tarnish and restores the shine on the surface of the pennies.