Whether a chlorine compound is a Class 2 or Class 3 oxidizer is dependent on the compound and composition. Refer to the NFPA document in the related link for various chlorine compounds and their Hazardous Class rating.
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Chlorine is classified as a class 3 oxidizer according to the United States Department of Transportation classification system.
The balanced equation between indium and chlorine is: 2 In + 3 Cl₂ → 2 InCl₃.
The balanced equation for iron reacting with chlorine to form iron(III) chloride is: 2 Fe(s) + 3 Cl2(g) → 2 FeCl3(s)
Chlorine is in period 3 of the periodic table.
Chlorine belongs to period 3 on the periodic table.
Chlorine has 3 energy levels. These energy levels are designated as K, L, and M.