URGEN A scientist comes across a new solid at low temperatures and wants to determine what type of material it is. She believes it is a nonpolar molecular compound. Following a lab investigation of phase changes of the molecule, the scientist must use minimal temperature increases to identify where on the phase diagram the substance would be since it is volatile. It is important to consider how pressure and temperature play a role.

Which of the following tests could be performed to determine if the mystery material is the hypothesized bond type?

A. Test hardness since molecular compounds like diamonds are very hard.

B. Test melting temperature since molecular compounds have very low melting points.

C. Test solubility since molecular compounds are the only ones that dissolve in water.

D. Test conductivity since molecular compounds are the only nonconductive compounds.