A) What is the oxidation state of sulfur before and after the reaction below? SO
ID: 966354 • Letter: A
Question
A) What is the oxidation state of sulfur before and after the reaction below?
SO32-(aq) + MnO4-(aq) SO42-(aq) + Mn2+(aq)
Before the reaction?
After the reaction?
+5
-4
+3
-2
-5
+1
+6
-3
+4
-1
0
B) What is the oxidation state of copper before and after the reaction below?
2NO3-(aq) + 8H+(aq) + 3Cu(s) 3Cu2+(aq) + 2NO(g) + 4H2O(l)
Before the reaction?
After the reaction?
+1
+4
-4
+5
+3
+2
-1
-5
-3
-2
0
C) What is the oxidation state of manganese (Mn) before and after the reaction below?
SO32-(aq) + MnO4-(aq) SO42-(aq) + Mn2+(aq)
Before the reaction?
After the reaction?
0
-3
-2
+2
+3
+5
-5
+7
-1
+1
-4
D) Select all that appy for the ClO4- anion in the reaction below.
ClO4-(aq) + Cl-(aq) ClO3-(aq) + Cl2(g)
Oxidized
Reduced
Oxidizing Agent
Reducing Agent
- A. B. C. D. E. F. G. H. I. J. K.Before the reaction?
- A. B. C. D. E. F. G. H. I. J. K.After the reaction?
A.+5
B.-4
C.+3
D.-2
E.-5
F.+1
G.+6
H.-3
I.+4
J.-1
K.0
Explanation / Answer
A. Before the reaction: I. +4
After the reaction: G. +6
B. Before the reaction: K. 0
After the reaction: F. +2
C. Before the reaction: C. -2
After the reaction: D. +2
D. ClO4- anion is Oxidized and Reducing agent.
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