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Author Question: The half-reaction occurring at the cathode in the balanced reaction shown below is ________. 3MnO4- ... (Read 120 times)

RODY.ELKHALIL

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on: Aug 27, 2018
The half-reaction occurring at the cathode in the balanced reaction shown below is ________. 3MnO4- (aq) + 24H+ (aq) + 5Fe (s)  3Mn2+ (aq) + 5Fe3+ (aq) + 12H2O (l)
 
  A) MnO4- (aq) + 8H+ (aq) + 5  Mn2+ (aq) + 4H2O (l)
  B) 2MnO4- (aq) + 12H+ (aq) + 6e-  2Mn2+ (aq) + 3H2O (l)
  C) Fe (s)  Fe3+ (aq) + 3e-
  D) Fe (s)  Fe2+ (aq) + 2e-
  E) Fe2+ (aq)  Fe3+ (aq) + e-

Question 2

When H2SO4 is neutralized by NaOH in aqueous solution, the net ionic equation is ________.
 
  A) SO42- (aq) + 2Na+ (aq)  Na2SO4 (aq)
  B) SO42- (aq) + 2Na+ (aq)  Na2SO4 (s)
  C) H+ (aq) + OH- (aq)  H2O (l)
  D) H2SO4 (aq) + 2OH- (aq)  2H2O (l) + SO42- (aq)
  E) 2H+ (aq) + 2NaOH (aq)  2H2O (l) + 2Na+ (aq)

Question 3

How many pairs of unpaired electrons are there in one molecule of dinitrogen monoxide?
 
  A) 4
  B) 3
  C) 5
  D) 2
  E) 1
Chemistry: The Central Science ¦ Brown, LeMay, Bursten ¦ 14th Edition
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hugthug12

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Reply #1 on: Aug 27, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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RODY.ELKHALIL

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Reply 2 on: Aug 27, 2018
Thanks for the timely response, appreciate it

nguyenhoanhat

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Reply 3 on: Yesterday
Gracias!

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