Aqueous aluminum bromide and chlorine gas react to form aqueous aluminum
chloride and bromine gas
in a equation

2AlBr₃   +    3Cl₂  →    2AlCl₃   + 3Br₂

Explanation:

The word equation is:

   Aqueous aluminum bromide and chlorine gas react to form aqueous  aluminum  chloride and bromine gas  

 Reactants:

     aluminum bromide  = AlBr₃

     chlorine gas  = Cl₂

 Products:

      aluminum chloride  = AlCl₃

      bromine gas  = Br₂  

So;

        2AlBr₃   +    3Cl₂  →    2AlCl₃   + 3Br₂

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