Question

1. The qualitative analysis scheme contains a vast array of reactions involving precipitation, formation of coordination complexes and oxidation-reduction. Balance each reaction by providing coefficients and identify each of the following as primarily one of the above kinds of reaction. a) completes Zn2+(aq) + NH3(aq) - Zn(NH3)42(aq) 2+ 2n2 and + UNH3 cag) - Zn C MHz) ucal) b) complexe Co?"(aq) + 4 SCN(aq) - Co(SCN)?(aq) co2+ + 45cN² COCSCN24 ian) c) Oxidation de dueti Mn2.. B10+ H - MnOs'Biº H2O Mn24 redubolon + H₂O2 H Co² a) oxidation H₂O + O₂

Answer 1

Saly love U C) complexes zn?taq) + 4 Nwg lep) –[an( W16)29 ()] ваlоnеу, а так руу болу 4 (b) complexes Co2+ (aq) + 4 scn-lay [co(scn) y?- caqs] Balancing SCN bu mech fleuna complexion . by 4 in son (J oxidation - Reduchten an 24 +501039 +24+ M og 75.8; 3+ + Mo é 3+5 Reduction en RHS 50. lo muerfly lay F in Biog 8 2 in H+ inLuis. dj oxidation - Reduction to (OH) g + H2O2 *** ~ 7627 +34,0+ 3. on RMS only 30 so multifly ley 3 in the healances ? - loth HSO ! - Oxidahon J Reduction Oxidation