4.3 - Redox Flashcards
1
Q
What is the oxidation number for all elements?
A
Zero
2
Q
Does the sign go before in oxidation numbers?
A
Yes, for example +2
3
Q
What are the special cases of the oxidation numbers?
A
H in metal halides = -1
O in peroxides = -1
O bonded to F = +2
4
Q
What should the sum of the oxidation numbers be equal to?
A
The total charge
5
Q
What is oxidation in terms of electrons and oxygen?
A
- The loss of electrons
- The addition of oxygen
6
Q
What is reduction in terms of electrons and oxygen?
A
- The gaining of electrons
- The removal of oxygen
7
Q
What is a redox reaction?
A
A reaction involving reduction and oxidation
