Which one of the following properties best suggests that calcium chloride is an ionic compound?
A.It is soluble in water B.It is in crystal form C. It has a melting point of 772 degrees celcius D. It conducts electricity when molten

Which one is the answer?

Question

Which one of the following properties best suggests that calcium chloride is an ionic compound?
A.It is soluble in water B.It is in crystal form C. It has a melting point of 772 degrees celcius D. It conducts electricity when molten 

Which one is the answer?

rogue · Answer

Best suggests that CaCl2 is an ionic... Choice C I guess. Ionic compounds have very high melting and boiling points.

callisto · Answer

@Rogue so do covalent compounds with giant covalent structure..

callisto · Answer

personally i think it is D. It conducts electricity when molten

anonymous · Answer

so, which one is the best answer ?

anonymous · Answer

It's soluble. http://chemistry.about.com/od/solutionsmixtures/a/solubility-rules.htm

callisto · Answer

but ethanol which is a covalent compound is also soluble in H2O

anonymous · Answer

Oh, I see.  These "best" questions can throw a person off.