CHAPTER 20

Question 1

Reduction

Answer 1

The gain of electrons

Question 2

Reducing agent

Answer 2

The substance oxidized

Question 3

Oxidizing agent

Answer 3

The substance reduced or the substance gaining electrons

Question 4

Redox reaction

Answer 4

Oxidation/reduction agent occurring in acidic and basic solutions

Question 5

Cell

Answer 5

Contains the reacting system

Question 6

Electrode

Answer 6

Where electric current enters or exits

Question 7

Annode

Answer 7

(Anox) negative pole; oxidation

Question 8

Cathode

Answer 8

(Red cat) positive; reduction

Question 9

Salt bridge

Answer 9

Allows exchange of ions to keep electric neutrality while electro active solutions remain separated

Question 10

Coulomb

Answer 10

Amount of change that passes a given point when 1 ampere (A) of electric current flows for 1 sec.

Question 11

Ampere

Answer 11

Current = A = # coulombs / second

Question 12

Joule

Answer 12

Measures amount of electrical energy; this is the amount of energy absorbed or evolved when 1 coulomb of electric charge moves through a potential difference of 1 volt (J/ coulomb)= (Kg x m^2)/(sec^2)

Question 13

Faraday

Answer 13

The passage of 1 mole of electrons and the charge that it carries which is 96,500 C/1 mole of electrons

Question 14

Faraday’s law

Answer 14

The amount of substance being oxidized or reduced at each electrode during electrolysis is directly proportional or the amount of electricity that passes though the cell

Question 15

Oxidation

Answer 15

Loss of electrons