They represent 150 and 3 as Roman numerals respectively
iii or III = 3
150 = CL (100+50 = 150)
CL stands for cover letters and seems to have no connection to the number 500. In roman nuerals the letters CL mean 150 and not 500. The two again having nothing to do with each other.
The Roman numeral CLXXXIV represents the number 184.
It means the number 3.
The ionic chemical formula of cobalt(III) chloride is: (Co)3+ + 3 Cl-.
Co+3 Cl-1 <---- these are the ions and their charges Co+3 Cl-1 Cl-1 Cl-1 <---- the charges have to add up to zero, so three -1 chlorine ions cancel out one +3 cobalt ion CoCl3 <---- simplify
Ag +1, Cl -7
-1 for each Cl, +2 for Pt
-1 for each Cl +3 for N
+1 for Li and -1 for Cl
Oxidation number of chlorine is +7. oxidation number of O is -2.
iii or III = 3
as oxidation number of K is 1 and the molecule is neutral 1+ Cl=0 Cl= -1 Therefore, the oxidation number of Cl is -1
Halogens
KCLO3 the oxidation number of potassuim is +1, oxidation number of chlorine is +5 the oxidation number of oxygen is -2 and there are 3 atoms of oxygen KClO3=1+5+(-2)3=0 therefore the oxidation number of KClO3 =0 or neutral
Zn +2, Cl -1