Oxidation numbers
Calculate the oxidation number of the specified element in the species on the left.
AlCl
3
Al
+1
+2
+3
+4
+6
-1
-2
-3
-4
-5
Cr
2
O
7
-2
Cr
+1
+2
+3
+4
+6
-1
-2
-3
-4
-5
O
3
O
0
+1
+3
+4
+6
-1
-2
-3
-4
-5
CO
3
-2
C
+1
+2
+3
+4
+6
-1
-2
-3
-4
-5
AlPO
4
P
+1
+2
+5
+4
+6
-1
-2
-3
-4
-5
H
2
SO
4
S
+1
+2
+3
+4
+6
-1
-2
-3
-4
-5
KNO
3
N
+1
+2
+3
+4
+5
-1
-2
-3
-4
-5
Sodium metal (Na)
Na
+1
+2
+3
+4
+6
-1
-2
-3
-4
-5
0
K
2
CrO
4
Cr
+1
+2
+3
+4
+6
-1
-2
-3
-4
-5
CCl
4
C
+1
+2
+3
+4
+6
-1
-2
-3
-4
-5
HPO
4
-2
P
+1
+2
+3
+4
+6
-1
-2
-3
-4
-5
H
2
SO
3
S
+1
+2
+3
+4
+6
-1
-2
-3
-4
-5
N
2
N
0
+1
+3
+4
+6
-1
-2
-3
-4
-5
Solutions
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