Redox Flashcards
What is oxidation
Loss of electrons
What is reduction
Gain of electrons
Why does oxidation and reduction occur at the same time
One species loses electrons and then are donated to the other species
What is oxidation number
Gives the oxidation state of an element or ionic substance
What is the oxidation state of an element
0
What does neutral compounds add up to in an oxidation state
0
What is hydrogens oxidation state
1
What is oxygens oxidation state
-2
What is the oxidation state of all halogens
-1
What is the oxidation state of group 1 metals
1
What is an oxidising agent
Something which accepts electrons from the species that is being ionised
What is a reducing agent
Donates electrons to the species being reduced
What are half equations used for
To separate oxidation and reduction reactions that occur in a redox reaction
