Oxidation numbers Flashcards
1
Q
O.N. of free element?
A
0
2
Q
O.N of simple ions?
A
its charge
3
Q
ON of neutral compounds?
A
0 overall
4
Q
ON of polyatomic ions?
A
its overall chage
5
Q
The ON of the most electronegative substance is
A
negative
6
Q
ON of hydrogen?
A
+1 (unless bonded to a metal, then it is -1)
7
Q
ON of oxygen?
A
-2 (unless it is bonded to fluorine (positive) or is a peroxide (O2 2-) - +1
8
Q
ON of main group metals?
A
Charge as an ion
9
Q
In reduction, what happens to the ON?
A
it reduces
10
Q
In oxidation, what happens to the ON?
A
IT in creases
11
Q
Define: conjugate reducing agent
A
The product occurring from the reactant of an oxidising agent
12
Q
Define: conjugate oxidising agent
A
The product occuring from teh reactant of a reducing agent.
13
Q
How do we represent conjugate redox pairs?
A
oxidant/reductant
