All of the properties listed below are physical because the compound itself changes, but nor the chemical composition.
- Before 1982: 3.1 g
- After 1982: 2.5 g
- Volume: 360 mm3
- Color: A copper color that loses its sheen over time.
- Circumference: 19mm
|A smashed penny's weight and volume would stay the same, but it circumference would be changed.|
- Smell: A copper/ iron smell similar to blood
All of the following properties are chemical because they involve a chemical reaction that can never be undone.
- By putting a penny in bleach, along with cleaning the penny and removing some of the rust, dirt, ect., it produced a gritty white material on the penny.
- By putting a penny in water it will eventually rust causing a chemical reaction.
|The older penny's results were much |
more noticable. The cleaner brought the penny
back closer to its original state.
- When i put a penny in coke there were signs that corrosion had started. Based on my research if i had a longer period of time for the penny to sit in the coke the corrosion would be so great that the penny would dwindle down to nothing.
|The older penny was the one that had shown the most progress thus far.|
- When I covered the penny with vinegar and left it over night, a green copper acetate formed much like the one on the Statue of Liberty.