`XeF_(n)` dissolves in HF according to the reaction `xeF_(n) +HF rarr [XeF_(n-1)]^(+) [HF_(2)]^(-)`. What is the value of n?

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`XeF_(n)` dissolves in HF according to the reaction `xeF_(n) +HF rarr [XeF_(n-1)]^(+) [HF_(2)]^(-)`. What is the value of n?

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