nail
a penny
I don't have a picture to give you, but I can describe some things that would be good conductors and you can find the pictures yourself. A sterling silver bracelet A penny Pretty much anything metal
The penny because it has more pressure.
A penny is made of metal, so is not flammable.
The question does not make sense because copper is a metal.
The density of a penny is higher.
zinc
acid and coke
saltwater, regular water, and vinegar can all speedup the rusting of a penny
the chemacls in vinager makes the penny rust
it will rust faster in vinegar
A common penny has a value of 1 penny only