Why is Cl2O8 considered a binary molecular formula?
A. It contains no metal elements.
B. It contains no nonmetal elements.
C. It contains one metal and one nonmetal element.
D. It contains two isotopes.

Question

Why is Cl2O8 considered a binary molecular formula? 
	A.	It contains no metal elements.
	B.	It contains no nonmetal elements.
	C.	It contains one metal and one nonmetal element.
	D.	It contains two isotopes.

anonymous · Answer

Chlorine is a "non-metal." Oxygen is a "non-metal." So it eliminates the answer choices "B", and "C" http://www.ptable.com/

anonymous · Answer

"Binary molecular (covalent) compounds are formed as the result of a reaction between two nonmetals." http://www.britannica.com/EBchecked/topic/108614/chemical-compound/278303/Binary-molecular-covalent-compounds

anonymous · Answer

That would mean that the answer is A, because it is made of two non-metals rather than two metals. :)