Final answer:
Statement B, which refers to the mass of the substance (6.77 g), is an example of an extensive property because mass is dependent on the amount of matter present.
Step-by-step explanation:
Which of the following statements describes an extensive property? The correct answer is B. The substance has a mass of 6.77 g.
An extensive property is a property of matter that depends on the amount of substance present. Examples of extensive properties include mass and volume. In contrast, an intensive property is independent of the amount of substance and includes properties such as density and temperature.
Statement B, which refers to the substance's mass, is directly proportional to the amount of matter in question and thus, is an extensive property. Statements A, C, D, and E describe intensive properties, which do not depend on the amount of matter.