Question

Write the half-reactions and the net ionic equations for these complete redox reactions 4 2NaCl (aq) + Br: (I) Cl: (g)2NaBr (aq) a) Oxidation half-reaction: Reduction half-reaction: CrCls (aq)+ Au (s) AuCl3(aq) Cr (s) - b) Oxidation half-reaction: Reduction half-reaction: Identify the oxidizing agent and the reducing agent in these complete redox reactions: 5. 5SO2-2Mn2+ 5so +3H2O a) 2MnO, +6H A) MnO B) So2 C) Mn2 D) SO E) H Oxidizing agent: b) 5Fe2 (aq) + MnO4 (ag) +8H'(aq)-5Fe (ag)+ Mn2 (aq) + 4H2O(/) B) MnO C) H D) Mn2 E) Fe A) Fe Reducing agent: What is the molarity of a 5.00 L solution that contains 235 g of sucrose, Ci2H2O? 6

Answer 1

4). a) cl 2Na B 2Nacl t (92) + 2B3 cl 2Nat 2Nat 2 cit (a2) (92) (a2) Fonic e2uattm clt 2 el (A) (92) mef-ionic e2uati n 2220 oxidatton half eactton c 2c1 Reduction half teaction: 2R- Crct Au AucC Aucls AU X3(-)0 +3-1)0 t3 C->crel oRidation half reactron AU Reoluctren halA 7eactrm: Au ch Arnh Increade dt exidatton numbesn: ORidation decrease ot oxidatton numben Reduction .

2 t550-2Mn so -2 3h0 -2 Mnt2 X+4)2 X+3(-1)2-2 4 -)2- Xニ+4 Xニ+7 Oxidized species S Reduced specres mn Oxidi 2ng agnt mng Reducing agent SO-2 b 5 Fet mng &H 5 pET mnt2 Fet2 Mng Mnt 2 Xニナと メニt3 t2 idised spe cres Fet - Reduced species Mng oxidisng agent Mng Redueing agnt Fet sucaase molasn mas 342 mol Molaai ty d Maes d SUIar e volume u) Molor maus SUCSIase 235 13 74 M 342

a chemi cal eactron Pan atom om in mdlecule loses electnon s Ti Safd a redlucing agent called CRIDISED and electrms and gains neduced aMd Fo be called said ORidising agen am