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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: yuval12y on July 21, 2020, 01:28:25 PM

Title: Question about balancing a reaction
Post by: yuval12y on July 21, 2020, 01:28:25 PM

hi, I was asked to balance this reaction :
H3PO4 + KMnO4 + H2SO4 → H3PO4 + MnSO4 + K2SO4+ H2O

can I get some help?
thank you

Title: Re: Question about balancing a reaction
Post by: AWK on July 21, 2020, 02:59:30 PM

No reductant. Use H₃PO₃ or H₃PO₂ on the left side.

Title: Re: Question about balancing a reaction
Post by: yuval12y on July 22, 2020, 06:57:17 AM

but why there will be no reductant? is this a reversible reaction?

Title: Re: Question about balancing a reaction
Post by: Borek on July 22, 2020, 08:19:27 AM

For the redox reaction to happen you need something that gets reduced and something that gets oxidized. There is nothing that can be oxidized in this mixture, all compound contain elements in their highest oxidation state.

Also note you have the same H₃PO₄ on both sides. This is most likely a mistake, perhaps just a typo.