Electrochem Vocab

Question 1

Electric Current

Answer 1

The quantity of charge flowing each second

Question 2

Ampere (A) and what does it represent

Answer 2

unit for current
the flow of one coulomb of charge per second

Question 3

Galvanic/Voltaic

Answer 3

store electrical energy, spontaneous reaction occurs when anode and cathode are connected (batteries)

Question 4

Electrolytic

Answer 4

requires external source of electrical energy

Question 5

reversible cell

Answer 5

reversing current reverse the reaction (car battery)

Question 6

irreversible cell

Answer 6

reversing current causes different half0reaction to occur

Question 7

Cell Potential (Ecell)

Answer 7

Difference in electrical potential between anode and cathode

Question 8

electrodes

Answer 8

anode (oxidation)
cathode (reduction)

Question 9

half-cell

Answer 9

combination of container, electrode, and solution

Question 10

What is cell potential dependent on?

Answer 10

-Concentration-dependent
-Temperature-dependent
-Nature of reactants

Question 11

salt-bridge

Answer 11

conducting medium through which the cations and anions can move from one half-cell to the other

Question 12

where do cations migrate

Answer 12

toward the cathode

Question 13

where do anions migrate

Answer 13

toward the anode