Question

Which atom has a change in oxidation number of –3 in the following redox reaction? K2Cr2O7 + H2O + S - - > KOH + Cr2O3 + SO2

Cr^+3 - - > Cr2O7^-2
Fe^+2 - - > Fe^+3
Fe^+3 - - > Fe^+2
Cr2O7^-2 - -> Cr^+3***
right

Related Questions

2. What is the reduction half-reaction for the following unbalanced redox equation? Cr2O72– + NH... 2. What is the reduction half-reaction for the following unbalanced redox equation? Cr2O7^2– + NH4... What is the reduction half-reaction for the following unbalanced redox equation? Cr2O7^2– + NH4^... Which atom has a change in oxidation number of –3 in the following redox reaction? K2Cr2O7 + H2O + S...