Final answer:
The liquids sample given to two groups of students with the same unknown liquid will not have different boiling points or densities, but could have different volumes or masses if not measured to be equal.
Step-by-step explanation:
The question concerns the properties of a liquid sample given to two groups of students. Given the options A) They will have different boiling points, B) They will have different volumes, C) They will have identical masses, and D) They will have different densities, we must rely on our understanding of the characteristics of substances and their states of matter to provide the correct answer.
Liquids are characterized by fixed volumes and undefined shapes, meaning they take the shape of their containers but maintain the same volume under constant temperature and pressure.
In contrast, gases can undergo large volume changes with pressure changes.
When considering a pure substance, it has a definite composition and will thus have a definitive boiling point that does not vary if the sample is divided among groups under identical conditions.
Similarly, the density of a pure substance is a characteristic property and will be the same for any amount of the substance, regardless of volume.
However, the mass of the liquid samples could vary from group to group if the samples are not measured out to be exactly equal.
Considering these principles, option A is incorrect because the boiling point of a substance does not change if it's the same substance.
Option C is incorrect unless it is explicitly stated that the students were given identical masses.
Option D is also incorrect because the density remains consistent for a given substance under the same conditions.
Option B is the most likely correct, as different volumes of the same liquid can be allocated to different groups without necessarily having the same mass.