CH 101 notes 11-5

CH 101 notes 11-5 - Other Class Examples sodium phosphate...

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Other Class Examples sodium phosphate and silver nitrate ammonium sulfate and sodium phosphate Lead(II) nitrate and potassium chromate barium acetate and ammonium sulfate cobalt(II) chloride and sodium phosphate ammonium sulfate and silver nitrate Your mission is to write the BALANCED net equation for any precipitation rxn, and identify the spectator ions Section 10.8 Potassium iodide Lead(II) nitrate Pb 2+ (aq) + 2I 1- (aq) Pb I 2 (s) No Rxn Rxn Assign Ox # to each atom/ion below +2 -1 +2 -1 Precipitation rxns: no change in ox # Section 10.8 What happens when steel wool (mainly iron) is placed in a solution of copper (II) sulfate? Dissolution process for copper (II) sulfate. CuSO 4 (s) Cu 2+ (aq) + SO 4 2- (aq) Cu 2+ (aq) + Fe (s) Cu (s) + Fe 2+ (aq) Ox # 2+ 0 0 2+ reduced oxidized Gained 2 e- Lost 2 e- Red ox rxns: change in ox #s Section 11.1 Oxidizing agent Oxidizing agent (oxidant) Reducing agent Reducing agent (reductant) Cu 2+ (aq) + 2e- Cu (s) Fe (s) Fe 2+ (aq) + 2e- Reduction half rxn
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This note was uploaded on 06/08/2008 for the course CH 101 taught by Professor Bigham during the Fall '08 term at N.C. State.

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CH 101 notes 11-5 - Other Class Examples sodium phosphate...

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