Question

help me balance these redox basic solutions

1) O3 + Br- —> O2 + BrO-

2) MnO4^2- —> MnO4- + MnO2

3) Ag2O + HPO3^2- —> Ag + PO4^3-

4) P4 —> PH3 + H2PO2-

5) S2O8^2- + Ni(OH)2 —> SO4^2- + NiO2

Answer 1

Balance the redox basic solution : Balance the ionic equation is basic medium by half reaction methode - O₂ + Bro, + Bro- Step find - 1 the oxidation number of Br in Bro- oxidation number of oxygen =-2 Bro = -1 B7(-2) = -1 Br =-+2 Br=t Step-2 oxidation chalf reaction - Boo- +1 here oxidation number of Br is i increasing ze to balance it, we gel by 2 so ad rag 2 to add a

- Br- - Bro-tre- step-3 add oh ions to balance the charge reaction Bro+2014 - Bro' +2e- Step-4 Add H₂O to balance the hydrogen and oxygen . or-t 200- - Bro- +H₂O +2e- Balanced oxidation half reaction Brº+2017 - Bro+H2O +2e - w ularly we can balanced half reduction Balanced creduction half reaction. O3 + H2O +2e-- > O2 +201 - Adding equation ") and (3) we get- reaction y (2 ) 3 Bor +206 +03 + H2O +24" - > B70+ 2e- +oz+2012 Ximplifyin oboue equation, we gee . O3 + Br- - O2 + Bron equation was already balanced.