Oxidation numbers |
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1 |
What is the oxidation state of each element in the following: |
2 |
Write down the oxidation state of N in the following: |
3 |
Write down the oxidation state of each element in red: |
4 |
Use oxidation numbers to work out the formula of the following ions |
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a | K | a | N2O | a | NaClO3 | a | Chlorate (III) with an overall charge of 1- | ||||||
b | Br2 | b | N2O5 | b | Na2SO3 | b | Chlorate (VII) with an overall charge of 1- | ||||||
c | NH4+ | c | N2H4 | c | KMnO4 | c | Phosphate (III) with an overall charge of 3- | ||||||
d | CaF2 | d | NO3- | d | K2MnO4 | d | Chromate (VI) with an overall charge of 2- | ||||||
e | Al2O3 | e | HNO2 | e | K2Cr2O7 | ||||||||
f | NO3- | ||||||||||||
g | PO43- |