Get aluminum chloride in all possible ways.

1) AlI3 (aluminum iodide (3)) + CrCl3 = AlCl3 + CrI3
2) 2AlI3 + 3HgCl2 = 2AlCl3 + 3Hg3I2
3) 3SrCl2 + Al2 (SO4) 3 = 2AlCl3 + 3SrSO4
4) Al + FeCl3 = AlCl3 + Fe



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