Which letter corresponds to the correct balanced chemical equation in an acidic solution?,
A. 2Mn2+(aq) + 8H2O(l) + 5Fe2+(aq) ->5Fe(s) + 16H+(aq) + 2MnO4–(aq)
B. 5Fe(s) + 16H+(aq) + 2MnO4–(aq) -> 2Mn2+(aq) + 8H2O(l) + 5Fe2+(aq)
C. Fe(s) + 8H+(aq) + MnO4–(aq) -> Mn2+(aq) + 4H2O(l) + Fe2+(aq)
D. Fe(s)+8H+(aq)+MnO4–(aq)+Pt2+(aq) -> Mn2+(aq)+4H2O(l)+Fe2+(aq)+Pt(s)
E. Mn2+(aq)+4H2O(l)+Fe2+(aq)+Pt(s) -> Fe(s)+8H+(aq)+MnO4–(aq)+Pt2+(aq)
What reaction is occurring at the cathode?
Fe(s) I Fe2+(aq) II MnO4–(aq), Mn2+(aq) I Pt(s)
A. Fe(s) -> Fe2+(aq) + 2e–
B. Fe2+(aq) + 2e– ->Fe(s)
C. Mn2+(aq) + 4H2O(l) -> 5e– + 8H+(aq) + MnO4–(aq)
D. 5e– + 8H+(aq)+MnO4–(aq) -> Mn2+(aq) +4H2O(l)
E. Pt(s) -> Pt2+ + 2e–
2007-05-14 06:30:34 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
B and A.
2007-05-14 06:49:00 · answer #1 · answered by Gervald F 7 · 0⤊ 1⤋
Sorry you caught me approximately 2 many years too previous due...I have been given an A in Gen Chem in college in spite of the undeniable fact that that is long experience been pushed to the airborne dirt and dirt bin...solid success female...bypass back and reread the text cloth e book...
2016-11-28 03:14:08 · answer #2 · answered by ? 4 · 0⤊ 0⤋