Oxidation States
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Last updated 2:20 PM on 4/4/26
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10 Terms
1
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uncombined element/atom
0
2
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hydrogen
+1 (apart from metal hydrides e.g. NaH)
3
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group 1
+1
4
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group 2
+2
5
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aluminium
+3
6
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oxygen, O
-2
7
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compound
sum is zero
8
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flourine
-1
9
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reaction 1 of chlorine not fully used up
Cl2 + H2O ⇌ HClO + HCl
10
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reaction 2 of chlorine fully used up - lots of sunlight
2Cl2 + 2H2O ⇌ 4HCl + O2
