PLZ HURRY IT'S URGENT!!!!!!!!
 Chromium (Cr) can combine with chlorine (Cl2) 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