Phsyical properties are
a.) those properties that cannot be changed
b.) those properties which require a chemical reaction to be observed
C.) those properties which can be observed without changing the identity of the substance
d.) those properties which include combustibility, flammability, and reactivity
e.) all of the above
The answer is C. Any physical property can be observed without changing the identity of the substance. That’s one of the main things that separates a physical and chemical property.
