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Balance the following redox equations and show work: a)         H2S + Hg 22+------> Hg + S + H+ b)         Zn +...

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Chemistry

Balance the following redox equations and show work:

a)        H2S + Hg22+------>Hg + S + H+

b)        Zn + BrO4-+ OH-+ H2O ------>[Zn(OH)4]2- + Br -

c)        MnO4- +S 2-+H2O ------->MnO2+ S +OH -

d)        Cu + H ++NO3-----------> Cu+2+ NO2+ H2O

e)        Cu + H ++NO3-----------> Cu+2+ NO +H2O

f)         MnO4-+NO2-+H2O ----->MnO2+NO3-+OH -

  

Answer & Explanation Solved by verified expert
4.1 Ratings (671 Votes)
a H2S Hg 22 2Hg S 2H b Zn BrO4 OH H2O ZnOH42 Br first half of the above reaction Zn ZnOH42 add 4 OH molecules to balance the O atoms Zn 4OH ZnOH42 balance charge by adding 2e on the left hand side of the above reaction Zn 4OH    See Answer
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