yuval12 Posted July 25, 2020 Share Posted July 25, 2020 hi, I was asked to balance this reaction : H3PO4(aq) + KMnO4(aq) + H2SO4(aq) → H3PO4(aq) + MnSO4(aq) + K2SO4(aq) + H2O(l) can I get some help? why we cant balance this reaction? and what can we say about a reaction that has the same compound as a reagent and a product? thank you Link to comment Share on other sites More sharing options...
studiot Posted July 25, 2020 Share Posted July 25, 2020 46 minutes ago, yuval12 said: hi, I was asked to balance this reaction : This must be homework ? 58 minutes ago, yuval12 said: why we cant balance this reaction? Is the reaction equation complete? 59 minutes ago, yuval12 said: and what can we say about a reaction that has the same compound as a reagent and a product? Such a compound has a special name do you know what it is - It begins with the letter C Link to comment Share on other sites More sharing options...
thinhphuvn Posted January 4, 2021 Share Posted January 4, 2021 This reaction I can not help balance, really complicated Link to comment Share on other sites More sharing options...
joigus Posted January 4, 2021 Share Posted January 4, 2021 (edited) Looks to me like a redox reaction that you have to balance by identifying how many electrons are transferred from what ion to what ion, and then accounting for H2O ions depending on whether you are in an acid or basic solution. This is called the ion-electron balancing method. The acid --in this case-- or the base in others, is there to tell you that you must balance by using protons. Bases balance by using OH- ions. Is this homework? Edited January 4, 2021 by joigus Link to comment Share on other sites More sharing options...
John Cuthber Posted January 4, 2021 Share Posted January 4, 2021 The reaction can not work. It's impossible to balance it. The electrons won't add up. 1 Link to comment Share on other sites More sharing options...
joigus Posted January 4, 2021 Share Posted January 4, 2021 10 minutes ago, John Cuthber said: The reaction can not work. It's impossible to balance it. The electrons won't add up. Doh! You're right. Manganese can't take what's not there. Link to comment Share on other sites More sharing options...
studiot Posted January 4, 2021 Share Posted January 4, 2021 3 hours ago, joigus said: Is this homework? No it's now ancient history. Check the OP date. 1 Link to comment Share on other sites More sharing options...
joigus Posted January 4, 2021 Share Posted January 4, 2021 (edited) 12 minutes ago, studiot said: No it's now ancient history. Check the OP date. Oh, boy. I wish there were a filter for the really important questions. So much time wasted on the I'm-totally-confused user! Edited January 4, 2021 by joigus Link to comment Share on other sites More sharing options...
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