hi, i can't resolve this redox reaction, can someone help to find the error?
P
4O
6 + I
2 = P
2I
4 + P
4O
10first i found the oxidation number and then i wrote the semi reaction and I balanced them:
Red
1: 12H
+ + 4e
- + P
4O
6 = 4P
+2 + 6H
2O
Red
2: 4e
- + 2I
2 = 4I
-Then i added them toghether:
12H
+ + 8e
- + P
4O
6 + 2I
2 = 4P
+2 + 6H
2O + 4I
- Ox: 4H
2O + P
4O
6 = P
4O
10 + 8e
- + 8H
+The total arrives:
12H
+ + 8e
- + P
4O
6 + 2I
2 + 4H
2O + P
4O
6 = 4P
+2 + 6H
2O + 4I
- + P
4O
10 + 8e
- +8H
+at the end my balanced reaction arrives:
2P
4O
6 + 2I
2 + 4H
+ = 4P
2I
4 + P
4O
10 + 2H
2O
The reaction is wrong because the exact balanced reaction is this:
5P
4O
6 + 8I
2 = 4P
2I
4 + 3P
4O
10I don't understand were is my error...