3.22 - Recognising Reactions Using Oxidation Numbers Flashcards
1
Q
What happens to an elements oxidation number when it is oxidised?
A
It increases
2
Q
What happens to an elements oxidation number when it is reduced?
A
It decreases
3
Q
How can oxidation number change be explored easily?
A
With half equations
4
Q
How do half equations help?
A
They show clearly the charge on the element before and after the reaction
5
Q
What is a disproportionation reaction?
A
A reaction where the oxidation number of an element is both increased and decreased
