Question

2. Balance the follwoing unbalanced chemicalequations. Then, write an ionic equation, and a net ionic equation for each equation. Identify the spectator ions a) CaCl2(aq) + K»PO4(aq) KCI(aq)+ Cast PO)(S) LIOH(aq) + H2SO4(aq) b) H2O) +Li2SO4(S) 3. In the reactions a) Pb(s) +2Ag' (aq)Pb (aq) +2Ag(s) b) Fe O3(s) +3CO(g)3Fe(s) + 3COg) Which species are oxidized and which are reduced? Which species are the oxidizing agents and which are the reducing agents ?

Answer 1

2(a) B Cachy (aq) + 2 K₂ Pou Lag) 6kce (aq) + Callou) (s) Total ionic Equation: 3 Ca 2+ (aq) + 3 ce- Caq) + 6K+ (aq) + 2 PO 43- (aq) - 6K+ (aq) + Gee (aq) + caz (Pou) 2 (s). - Net ionic Equation? 369 2 + (aq) + 2 Poy 3 - Cag) - Callou) 2 (s). Kt and că are spectators. b2 Li OH lag) + Hy sou lag) - >2430 (0 + LiSoy(@). Total ionic : 2lit (aq) + 204 (aq) + 2H+ (aq) + SO4²- (aq) 240 W +2litsou cao - Net ionic Equations 1 2H+ (aq) + 204 (aq) y 2H₂00 Lit and soy2- are spectators.

3)(0) Pb(s) + 2agt (aq) = Pb?+ (aq) + 2Ag (s) Pb Pb2+ + 20 (oxidation) 2e + 2Agt 2Ag (Reduction). oxidized Reduced : Pb. i Agt - oxidizing Agent : Ag+ Reducing agent : pb. (6) Fe2O3(s) + 3 Colg) — 2fe (s) + 300 () bet + fez oz (s) -> 2 fe (s). (Reduction) 300 3002 + 6e- (oxidation) +2 +4 oxidized Reduced : : co Fe2O3 oxidizing agent tez Reducing agent : co.