Chemistry 1129 Self Test
electrolyte
ammonium chloride and zinc chloride
The negative electrode (where oxidation occurs) of an electrochemical cell is called the ...
anode
A porous ... is placed between the anode and the cathode in an electrochemical cell to prevent electrolytes from mixing
barrier
positive electrode
carbon rod
Reduction occurs at the ... in both electrochemical and electrolytic cells
cathode
The positive electrode (there reduction occurs) of an electrochemical cell is called the ...
cathode
Electrorefining is an electrolytic process that separates metals from oxygen, but ... is an electrochemical process that unites metals with oxygen
corrosion
process by which metals are oxidized in the atmosphere
corrosion
The amount of electric charge flowing past a specific point per unit of time is called ...
electric current
branch of chemistry that deals with electricity- related applications of oxidation-reduction reactions
electrochemistry
nonsp0ntaneous redox reaction driven by an external electric current
electrolysis
... is the energy required to move an electric charge through a circuit
electromotive force
electrolytic process by which a metal is deposited on a surface
electroplating
method of refining metals using electrolysis
electrorefining
type of reaction that occurs at the anode and cathode of an electrochemical cell
half-reaction
type of equation that shows the change in charge and movement of electrons
ionic
cathode
manganese (IV) oxide and powdered carbon
The first law of electrolysis states that the ... of an element freed during electrolysis is directly proportional to the ... that passes through an electrolytic cell
mass, amount of charge
The second law of electrolysis states that the ... of an element freed during electrolysis is directly proportional to its ... divided by its ...
mass, atomic mass, oxidation number
chemical reaction in which an atom or ions loses an electron
oxidation
A reaction in which at least two atoms or ions undergo a change in oxidation state is called ...
oxidation-reduction reaction
A substance that causes another substance to be oxidized is called ... agent
oxidizing
electrolyte
potassium hydroxide
anode
powdered zinc
In an ... reaction, the number of electrons lost by atoms or ions must equal the number of electrons gained
redox
chemical reaction in which atom or ion gains an electron
reduction
Electrode potential is the potential difference between an electrode and its ...
solution
anode
zinc can
potential of the half-cell measured in relation to the zero potential of the standard hydrogen electrode
standard electrode potential
