Oxidation-Reduction Reactions

Question 1

Oxidation

Answer 1

Loss of electrons

Question 2

Reduction

Answer 2

Gaining electrons

Question 3

Acronym for Oxidation-Reduction

Answer 3

OIL RIG

Question 4

Oxidizing agent

Answer 4

Causes another atom in a redox reaction to undergo oxidation and is itself reduced to start
Become oxidized

Question 5

Reducing agent

Answer 5

Causes another atom in a redox reaction to undergo oxidation and is itself oxidized to start

Question 6

What are the properties of oxidizing agents?

Answer 6

Strongly electronegative

Question 7

What are properties of reducing agents?

Answer 7

Contain metal ions or hydrides

Question 8

Oxidation Rules

Answer 8

1. ) Oxidation number of a free element is zero
2. ) Oxidation number for a monatomic ion is equal to the charge of the ion
3. ) The oxidation number of each Group IA element is +1
4. ) The oxidation number of each group IIA element is +2
5. ) Oxidation number of Hydrogen is +1 usually
6. ) Oxidation number of Oxygen is usually -2
7. )The sum of oxidation numbers of all the atoms present in a neutral compound is zero or charge of polyatomic ion

Question 9

Which oxidation numbers usually have many states?

Answer 9

Transition metals

Question 10

Equations to determine which is oxidized or reduced

Answer 10

Lose + = oxdized

Gain +=reduced

Question 11

Steps of Balancing Half Reactions

Answer 11

1. )Separate into half reactions
2. )Balance atoms on each side except for H and O
3. ) Add H20 to balance O, add H+ to balance H
4. ) Add electrons to each side to balance the electrons
5. )Multiply to even electrons
6. ) Cancel terms on both sides

Question 12

Spectator ion

Answer 12

Ions that are not changed & don’t participate in the oxidation-reduction

Question 13

Net ionic equation

Answer 13

Shows only species that actually participate in the reaction