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Chemistry

Redox

QuestionAnswer
Redox is... Reduction and oxidation (transfer of electrons)
Oxidation is... The loss of electrons, the gain of oxygen and the loss of hydrogen and increase in oxidation state
Reduction is... The gain of electrons, the loss of oxygen and the gain of hydrogen and decrease in oxidation state
An oxidising agent... Oxidises something and is itself reduced, an electron donor
A reducing agent... Reduces something and is itself oxidised, an electron acceptor
Oxidation state or number... Is the number of electrons lost, gained or shared by an atom in a compound
What is the oxidation state/number of an element? 0
What is hydrogen's (H) oxidation state? +1 (exception of LiH- H= -1)
What is oxygen's (O) oxidation state? -2 (exceptions are: H2O2- O= -1 & OF2- O= +2)
What is fluorine's (F) oxidation state? -1
What is chlorine's (Cl) oxidation state? -1 (exceptions are compounds with O or F)
What are group 1 oxidation states? +1
What are group 2 oxidation states? +2
What is a disproportionation reaction? A reaction in which the same species is both oxidises and reduced
Created by: deannarosee
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