Question

A science teacher gave a student a sample of a clear liquid labeled "unknown

substance." Which property would best help the student determine the
sample's identity?

A. The sample's boiling point

B. The sample's mass

C. The sample's volume

D. The sample's weight

Answer 1

A. The sample's boiling point

Step-by-step explanation:

Because by knowing boiling point we easily find a substance for example if given clear liquid boiling point is 100 c° we immediately know this is water.

Moreover boiling point is a fixed quantity for a substance.