Redox Flashcards
1
Q
oxidation
A
increase in oxidation number
gain of oxygen
loss of hydrogren
loss of electrons
2
Q
reduction
A
decrease in oxidation number
loss of oxygen
gain of hydrogen
gain of electrons
3
Q
redox reaction
A
one in which there are changes in oxidation number
4
Q
oxidising agent
A
oxidises another species
reduced itself
takes electrons
5
Q
reducing agent
A
reduces another species
oxidised itself
forces its electrons onto other species
6
Q
oxidation state/number
A
made up construct
treats every element as if it was ion
7
Q
elements always
A
0
8
Q
compounds add up to
A
0
9
Q
polyatomic ions add up to
A
charge
10
Q
simple ions
A
oxidation number = charge
11
Q
group 1, 2, 13
A
always +1, +2, +3
12
Q
fluorine always
A
-1
13
Q
hydrogen almost always
A
+1
14
Q
oxygen almost always
A
-2
15
Q
chlorine usually
A
-1
