Jayda wants to study the chemical properties of iron. How could she do this?
A. She could observe the sample’s reactivity with moist air.
B. She could find the mass of the sample.
C. She could find the density.
D. Marianne could hit the sample with a hammer.
Here, all the options except first one is related to physical property of Iron, if you need to test it's chemical property then, you could observe the sample's reactivity with the moist air.