Chromium (Cr) can combine with chlorine (Cl) to form chromium chloride (CrCl3).

Which equation is a correct representation of this reaction?



A.


Cr + Cl2 → CrCl3


B.


2Cr + Cl2 → CrCl3


C.


2Cr + 3Cl2 → CrCl3


D.


2Cr + 3Cl2 → 2CrCl3