Which complex has a coordination sphere that does not dissociate into ions in solution?

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[Ni(NH₃)6]Cl₂ [Co(NH₃)5Cl]Cl₂ [Ni(NH₃)2Cl₂] Correct [Cr(H₂O)6]Cl₃

[Ni(NH₃)2Cl₂] is neutral, with no counter ions, so its coordination sphere remains intact in solution.

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