Redox Reactions Flashcards
1
Q
What happens when electrons are gained?
A
Reduction
2
Q
What does an oxidising agent do?
A
Accepts electrons and gets reduced
3
Q
What does a reducing agent do?
A
Donates electrons and gets oxidised
4
Q
What is the oxidisation number for unconbined elements?
A
0
5
Q
What is the oxidation number for elements bonded to identical atoms (like O2 and H2)
A
0
6
Q
What is the oxidation number for a simple monatomic ion (such as Na+)
A
The same as its charge
7
Q
In compounds and compound ions, what is the total oxidation number?
A
The same as the ion charge
8
Q
What is the oxidation number of combined oxygen?
A
-2
9
Q
What is the oxidation number of combined hydrogen?
A
-1
10
Q
What happens when electrons are lost from an element..
A
Oxidation
