2.1.5- Redox Flashcards
1
Q
What is the oxidation number of an element?
A
0
2
Q
What is the oxidation number of hydrogen in metal hydrides?
A
-1
3
Q
What is the oxidation number of oxygen in peroxides?
A
-1
4
Q
What are Roman numerals used for?
A
To indicate the magnitude of an oxidation number
5
Q
What is oxidation?
A
The loss of electrons
6
Q
What is reduction?
A
The gain of electrons
7
Q
What is an oxidising agent?
A
Accepts electrons from the species being oxidised
8
Q
What is a reducing agent?
A
Donates electrons to the species being reduced
9
Q
What happens in a disproportionation reaction?
A
A species is both oxidised and reduced
10
Q
What is an example of a disproportionation reaction?
A
Cl2 + H20 -> ClO- + Cl- + 2H+
