Redox Reactions

Question 1

How is the oxidation number for hydrogen assigned?

Answer 1

 In compounds hydrogen is given the oxidation number +1. Unless it is bonded to a metal in which case it is -1.

Question 2

Define reduction

Answer 2

involves the gain of electrons within a species

Question 3

How is the oxidation number for oxygen assigned?

Answer 3

 Oxygen is given the oxidation number of -2. Unless it is bonded to another oxygen in a peroxide bond (oxygen-oxygen single bond). Then it is -1.

Question 4

How is the oxidation number for an atom assigned?

Answer 4

 The oxidation number of an atom in its neutral elemental state is zero.

Question 5

How is the oxidation number for a monotomic ion assigned?

Answer 5

 The oxidation number for a monatomic ion is its charge

Question 6

What involves the loss of electrons from a species?

Answer 6

oxidation

Question 7

Define oxidation

Answer 7

involves the loss of electrons from a species

Question 8

What involves the gain of electrons within a species?

Answer 8

reduction