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MCAT Question of the Day
Q:
Using the standard half-cell potentials for the reactions below, identify the reaction which will be spontaneous.
Ba
2+
+ 2e
-
↔ Ba -2.90 V
Mn
2+
+ 2e
-
↔ Mn -1.04 V
K
+
+ e
-
↔ K -2.92 V
2H
+
+ 2e
-
↔ H
2
0.00 V
I
3
-
+ 2e
-
↔ 3I
-
0.53 V
A
Ba
2+
+ Mn ↔ Mn
2+
+ Ba
B
K + Ba
2+
↔ K
+
+ Ba
C
3I
-
+ 2H
+
↔ I
3
-
+ H
2
D
K
+
+ I
3
-
↔ 3I
-
+ K
Electrochemistry
|
Chemical Equilibrium
|
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