NEED HELP ASAP.....Titanium dioxide is used as a white pigment in paints. If 3.5 mol TiCl4 reacts with 4.5 mol O2, which is the limiting reactant?
TiCl4 + O2 --> TiO2 + 2Cl2


A)O2 is limiting
B)TiCl4 is limiting
C)TiO2 is limiting
D)Cl2 is limitin