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Assign oxidation number to all atoms in the equation. Mention the oxidizing agent and reducing agent .                                                                                                  a) KClO3 (aq) + HBr(aq) Br2 (l) + H2O(l) + KCl(aq b) Cu (s) + 4HNO3 (aq) ↔Cu(NO3 )2 (aq) + 2NO2 (g) + 2H2O (l) c) Al(s) + H2 SO4 (aq)↔ Al2 (SO4 )3 (aq) + H2 (g) d) PbS(s) + O2 (g)↔ PbO(s) + SO2 (g) e) Cr2​O7−2​+3SO3−2​→2Cr+3+3SO4−2​+4H2​O+8H+

Assign oxidation number to all atoms in the equation. Mention the oxidizing agent and reducing agent .                                                                                                  a) KClO3 (aq) + HBr(aq) Br2 (l) + H2O(l) + KCl(aq b) Cu (s) + 4HNO3 (aq) ↔Cu(NO3 )2 (aq) + 2NO2 (g) + 2H2O (l) c) Al(s) + H2 SO4 (aq)↔ Al2 (SO4 )3 (aq) + H2 (g) d) PbS(s) + O2 (g)↔ PbO(s) + SO2 (g) e) Cr2​O7−2​+3SO3−2​→2Cr+3+3SO4−2​+4H2​O+8H+

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter17: Electrochemistry And Its Applications
Section: Chapter Questions
Problem 33QRT: Consider these half-reactions: (a) Which is the weakest oxidizing agent? (b) Which is the strongest...
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Assign oxidation number to all atoms in the equation. Mention the oxidizing agent and reducing agent .                                                                                                 

a) KClO3 (aq) + HBr(aq) Br2 (l) + H2O(l) + KCl(aq

b) Cu (s) + 4HNO3 (aq) ↔Cu(NO3 )2 (aq) + 2NO2 (g) + 2H2O (l)

c) Al(s) + H2 SO4 (aq)↔ Al2 (SO4 )3 (aq) + H2 (g)

d) PbS(s) + O2 (g)↔ PbO(s) + SO2 (g)

e) Cr2​O7−2​+3SO3−2​→2Cr+3+3SO4−2​+4H2​O+8H+​​

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