Question

are these two substances the same? explain why they are or are not.
substance color conductivity density melting point
yellow yes 1.96 g/ml 115.2 °c
yellow yes 2.00 g/ml 130.5 °c

Explanation:

Step1: Compare density values

The first substance has a density of 1.96 g/mL and the second has a density of 2.00 g/mL. Since density is a characteristic property, different density values suggest different substances.

Step2: Compare melting - point values

The first substance has a melting - point of 115.2 °C and the second has a melting - point of 130.5 °C. Melting point is also a characteristic property, and these different melting points further indicate they are different substances.

Answer:

No, they are not the same substances because they have different density and melting - point values.