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    Could some one please tell me what x is and what n is
    Thanks


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    (Original post by Hardworker?)
    Could some one please tell me what x is and what n is
    Thanks


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    'x' is a negative ion and 'n' is an integer ...
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    n comes from balancing the equation, x is a general negative anion in this case of charge 3- (which should be obvious from balancing with H).
 
 
 
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