Redox Flashcards
1
Q
What is an oxidation number?
A
The number of electrons an atom uses to bond with any other atom.
2
Q
What is the oxidation number of combined oxygen such as in H2O?
A
-2
3
Q
What is the oxidation number of oxygen in peroxides?
A
-1
4
Q
What is the oxidation number of combined hydrogen such as in NH3, H2S?
A
+1
5
Q
What is the oxidation number of combined hydrogen in metal hydrides such as LiH?
A
-1
6
Q
What is the oxidation number of a simple ion?
A
-1/+1
7
Q
What is the oxidation number of combined fluorine sich as in NaF, CaF2?
A
-1
8
Q
What element has more than one stable oxidation number how is it indicated?
A
Written as a roman numeral
9
Q
What are oxyanions?
A
Negative ions that have an element along with oxygen.
