Question

balance pls show work its just to check

HW12 Balance the following redox in acidic/basic medium MnO- + Fe2+ → Mn2+ + Fe3+ (acidic) Cr2O72- + C,H-OH → Cr3+ + CO2 (acidic) Ag + CN- + 02 → Ag(CN)2- (basic) Cr2O72- + S032– → Cr3+ + SO42- (acidic) C1,02 + H2O2 → C102 +02 (basic) MnO4 + C H204 → Mn2+ + CO2 (acidic) Sn + NO3- → SnC162- + NO2 (basic)

Answer 1

Answers . Mnou + felt - Mu 2+ + pe 3t. fu acidie medium, when main aloms are already balanced equivalent no. of tho' molecule on line offerte vide : Muoy it feat → Mu2+ + fe et + 4H₂O. Step - 2 * Balance the tt ions that increased on adding tho' on the side by adding tit on the other side. :. Mnoa + fe 24 g t MM 27 + fe 3* + Atzo Step-3 finally balance the charge on either side by adding electrone i. Mnai + Fe 2+ + 84* +46 - Mn 2t + Fe 3+ + 4H20 Aur: Thus, the balanced equation is - Amoy +fe2+ + 8H + + 46 MM2+ + fe 3 + + 4H₂O ③ Cg og 2 + 300 2- → ly B+ + 30,8 Blep - 1 * First the central alom in. '''' į to be balanced on both side a C140,2- +30,2 → 2648+ + 5048. Blep - 2 Neat add 'thon molecule to balance excese of not atoms. 6.02- + so 2- 2 by 8 + 80 + 6H2O Step - 3 Now add #t lons on the offerite side of "H20' to balance the excess of Htions due to n o Cop 2 -+ 50% + 12H + 2, 3 + + 8092 - + 6H2O. Slep - 4 Now balance the charge on either side by . addition of electrons. I Co &-+ 50 gul +12H+ + 46 → 24 84+ 50 2t 6tho. Aws:- Thus, the balanced equation is - az Op 7 50% +12H+ + 46 - 24 t + soy? + 6H₂O

2- Ca. 2 led 7" + C H OH a st+co, du acidic mediuma Step 1 → first balance the central atoms i.e. es and a on either side q272- + G H g OH → aby 3 + + 200₂. Step-2 » Now balance she no of 'o' atoms by adding the molecule to the off side of exeur no. CO2 + C₂H5OH 2143+ + 2log + 4H2O . slep 3 Now balance it is on the off. side of thgo to balance exees of #t ions due to H₂O ergoft HEGH + 74+ 20y g++ 200 + 4H₂o. slip-4 → Lastly balance the charge e ciller side by addition of electrons. CrgOf 2 + G H g OH + H² qey 3+ + 200 + 4H₂0 té. Arr: athus the balanced equation ů - coop2- + G#50H + 4* → 20 3+ + 2002 + 4H₂0 té muo A & C H₂04 → Muattoo In acudie medium slef-1 ☆ quitially the main atom ice.ne' was balanced. Mnog + G H₂O 4 Mn2+ + 2002. slep -q ħ Now to balance 'o' atoms, equivalent no. of the - molecules are added on the off. side. Mnog + Cq H2O 4 mm 24 + 2002 + 4H2O . step-B Now the Ht ions are balanced by adding them off. to Ho'. Mmoa + Cat Hy o bly m ² + + 2002 + 4H₂O . Slip-f finally the charge a balanced by additim of e- Mnog + Cq Hz Og + 6H+ + 4é m u 2+ + 2 202 + 4H₂O. Aus :- Thus the balanced equation ů - Mmoa + C H₂04 + 6H+ + 4e Me + 200, +41,01