Question

why are intensive properties useful for identifying a substance? (1 point) they do not depend on the amount of substance you have. they are chemical properties. they are physical properties. they describe the amount of substance you have.

Explanation:

Intensive properties are useful for identifying a substance because they do not depend on the amount of the substance present. For example, density (an intensive property) of water is the same whether you have a drop or a gallon. The first option is incorrect as intensive properties don't describe the amount. Physical and chemical properties can be either intensive or extensive, so the second and third options are not the reason for their usefulness in identification. Only the fact that they are independent of the amount makes them reliable for identification.

Answer:

A. They do not depend on the amount of substance you have.