Question

sarah is completing a lab in which she is required to identify an unknown substance. she records several observations and measurements of the substance. which of the following properties will be most helpful to sarah in making a correct identification?

Explanation:

Density is a characteristic property of a substance. It is calculated as mass divided by volume ($
ho=\frac{m}{V}$). While mass, volume, and weight can vary depending on the amount of the substance (extensive properties), density remains constant for a pure substance under specific conditions (intensive property). So, density is unique to a particular substance and helps in identification.

Answer:

density