module 2: 4.3 redox Flashcards
redox 2.1.5
1
Q
define the term oxidation number
A
the number of electrons involved in bonding to a different element
2
Q
the oxidation number for elements
A
- The oxidation number is always 0 for elements
3
Q
what does the sum of the oxidation numbers equal to
A
total charge
4
Q
how do you write oxidation numbers
A
charge then oxidation number
E.g. -1, +3 etc
5
Q
define oxidation
define oxidation in terms of electrons
A
oxidation is the addition of oxygen
oxidation is the loss of electrons
6
Q
define reduction
define reduction in terms of electrons
A
reduction is the removal of oxygen
reduction is the gain of electrons
7
Q
reduction in terms of oxidation number
A
reduction is a decrease in oxidation number
8
Q
oxidation in terms of oxidation number
A
oxidation is an increase in oxidation number
