Question

Iron's ability to rust is not a physical property because


A.it cannot be observed.

B.the identity of iron stays the same.

C.a new substance with new properties is formed.

D.iron is magnetic

Answer 1

the answer should be c

Answer 2

C. a new substance with new properties is formed.

A physical property is a property that can be observed and what not, but does not change the original object/form a new substance, hence why the answer is C