Question

which of these properties is demonstrated in a solid substance that does not dissolve in water and has the ability to conduct heat?
soluble
fragile
low melting point
conductive

Explanation:

The key - word is "ability to conduct heat". Soluble means dissolvable in a solvent (it's not soluble in water here), fragile refers to being easily broken, low melting point is about the temperature at which it melts. Conductive means having the ability to conduct heat or electricity.

Answer:

D. conductive