Ch.6 Notes - d. HCL(aq), H 3 PO 4 (aq), HC 2 H 3 O 2 ,...

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Cl 2 + CN- OCN- + Cl- Treat as if in acid Wipe out “H+” with “OH-“=H2O ox. CN- OCN- CN- + H 2 O OCN- + 2H+ + 2e- red. Cl 2 Cl- Cl2 + 2e- 2Cl- CN- +H 2 O +Cl 2 (+2OH-) OCN- + 2H+ +2Cl- (+2OH-) CN- + Cl 2 + 2OH- OCN- + 2Cl- O 2 as an oxidizing agent Organic: 2C 4 H 10 (g) + 13O 2 (g) 8CO 2 (g) + 10H 2 O Butane A combustion reaction Inorganic: -metals 2Mg(s) + O 2 (g) 2MgO(s) [a metal oxide] Some metal oxides are protective (ex. Al, G) -nonmetals Most react with O 2 (g) Ex. S 8 (s) + 8O 2 (g) 8SO 2 (g) Oxidation/Reduction in Acids I. Rxn of Metals with H+ a. Zn(s) + 2HCl(aq) ZnCl2(aq) + H 2 (g) b. Depends on metal c. “anion” of acid does not participate in the reaction
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Unformatted text preview: d. HCL(aq), H 3 PO 4 (aq), HC 2 H 3 O 2 , dilute, cole H 2 SO 4 II. What about the anion of the acid a. Not always innocent b. Ex. NO 3-is stronger ox agent than H+, so c. CU(S) + 4HNO 3 (aq) Cu(NO 3 ) 2 (aq) + 2NO 2 + 2H 2 O d. Ex. HNO 3 (aq), hot, concd H 2 SO 4 (aq) Metal Cations as Ox. Agents (single ion displacement) Which occurs? a) Zn(s) + Cu 2+( aq) Cu(s) + Zn 2+( aq) --correct one OR b) Cu(s) + Zn 2+( aq) Zn(s) + Cu 2+( aq) -- no reaction Know activity series table 6.2...
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This note was uploaded on 07/05/2008 for the course CHEM 1311 taught by Professor Sibert during the Fall '08 term at University of Texas at Dallas, Richardson.

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