chapter8 - 14 H + (aq) + Cr 2 O 7 2-(aq) + 6 Ag(s) Æ 6 Ag...

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Homework Chapter 8 8.1 a) A substance that will oxidize another, itself being reduced. b) don’t do, we didn’t discuss. 8.3 a) P Æ +3 (O is -2) b) P Æ +5 (O is -2 , H is +1) c) P Æ -3 (Na is +1) d) P Æ -3 (H is +1) e) P Æ +5 (O is -2, Cl is -1) 8.9 a) +1 b) +2 c) +3 d) +4 e) +5 - an increase by units of +1 from group 13 to group 17. 8.11 a) Nickel from +2 to 0, carbon from 0 to +2 b) Manganese from +7 to +2, sulfur from +4 to +6 8.13 NH 4 + (aq) + 3 H 2 O(l) Æ NO 3 - (aq) + 10 H + (aq) + 8 e- 8.15 N 2 H 4 (aq) + 4 OH - (aq) Æ N 2 (g) + 4 H 2 O(l) + 4 e-
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8.16 a) testbook wrong, problem should read: F e 2+ (aq) + I 2 (l) Æ Fe 3+ (aq) + I - (aq) Answer: 2 F e 2+ (aq) + I 2 (l) Æ 2 Fe 3+ (aq) + 2 I - (aq) b)
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Unformatted text preview: 14 H + (aq) + Cr 2 O 7 2-(aq) + 6 Ag(s) Æ 6 Ag + (aq) + 2 Cr 3+ (aq) + 7 H 2 O(l) 8.17 a) 5 HBr(aq) + HBrO 3 (aq) Æ 3 Br 2 (aq) + 3 H 2 O(l) b) 2H + + HNO 3 (aq) + Cu(s) Æ 2 NO 2 (g) + Cu 2+ (aq) + 2 H 2 O(l) 8.18 a) 6 OH-(aq) + 3 H 2 O(l) + I-(aq) + 5 Ce 4+ (aq) Æ 5 Ce 3+ (aq) + IO 3-(aq) + 6 H 2 O(l) b) Al(s) + 2 H 2 O(l) + MnO 4-(aq) Æ MnO 2 + Al(OH) 4-(aq) 8.19 a) 12 V(s) + 10 ClO 3-(aq) + 18 OH-(aq) Æ 6 HV 2 O 7 3-(aq) + 10 Cl-(aq) + 6 H 2 O(l) o r 6 V(s) + 5 ClO 3-(aq) + 9 OH-(aq) Æ 3 HV 2 O 7 3-(aq) + 5 Cl-(aq) + 3 H 2 O(l) b) 2 S 2 O 4 2-(aq) + 3 O 2 (g) 4 OH-(aq) Æ 4 SO 4 2-(aq) + 2 H 2 O(l)...
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This note was uploaded on 11/16/2011 for the course CHEM 3510 taught by Professor Staff during the Fall '10 term at Valdosta State University .

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chapter8 - 14 H + (aq) + Cr 2 O 7 2-(aq) + 6 Ag(s) Æ 6 Ag...

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