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Topic: writing a balanced equation  (Read 2395 times)

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Offline monday

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writing a balanced equation
« on: December 05, 2007, 01:57:01 PM »
 potassium permanganate (kmno4) is decolourised by na2s2o8.I think i'm o.k with calculating the concentrations,just don't know how to write the equation.basically,I can't figure out the products....can anyone help?

Offline sondakem

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Re: writing a balanced equation
« Reply #1 on: December 05, 2007, 02:19:38 PM »
Determine the valence level of each of the elements in the reaction.  You will find that one of the is quite unusual.  Bring it to a more usual value by balancing it against the Mn valence change in the decolorization.

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