Question 16
Silver can be stored in a special box to prevent tarnishing. Suppose on silver earring is kept in a box and one is left out. Several months later, the earring that was left out is tarnished. The one in the box is not. Which statement is true?
| A. | Tarnishing is a change in mass. |
| B. | Tarnishing is a physical change. |
| C. | Tarnishing is a chemical change. |
| D. | Tarnishing is a change in state of matter. |