The charge on the bromide ion has been omitted. It should be Br^-(aq).
I think I would prefer Cl2(aq) as Cl2(g) and Br2(aq) as Br2(l) although I couldn't argue forcefully for those latter changes since, after all, it is an aqueous solution.
What is wrong with this ionic equation and what is the correct way to write it?
Cl2(aq)+ 2K+(aq)+2Br(aq)->Br2(aq)+ 2K+(aq)+ 2Cl-(aq)
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