Oxidation, Reduction And Redox Equations Flashcards
What is another name for oxidation number
Oxidation state
What does oxidation state/number tell you
The total number of electrons an element has accepted or donated
Is oxidising agent an electron accepted or donor
OAAER
Electron accepter
Is reducing agent and electron acceptor or donor
RADEO
Electron donor
(Reducing agent donates electrons and becomes oxidised)
In an equation, if an atom has the same oxidising number before and after the reaction, what do you call it
A spectator
In what 2 instances is the oxidation state 0
-Uncombined elements (e.g. Mg)
-Elements bonded to identical atoms (e.g. H2, Cl2)
What is the oxidisation state of Hydrogen and what is the exception
+1 (except in metal hydrides where it is -1)
What is the oxidation state of Group 1 elements and what is the exeption
Always +1
What is the oxidation state of Group 2 elements and what is the exeption
Always +2
What is the oxidation state of aluminium and what is the exeption
Always +3
What is the oxidation state of oxygen and what is the exception
-2 (Except in peroxides where it is -1 and the compound OF2 where it is +2)
What is the oxidation state of fluorine and what is the exception
Always -1
What is the oxidation state of chlorine and what is the exception
-1 (except in Compounds with F and O where it has positive values)
Oxidation state SAMSUNG NOTES
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Why is the sum of all oxidation states in a compound 0
Compounds are electrically neutral
