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WorksheetsElectrochemistry
Total questions: 34
Worksheet time: 19mins
Oxidation is the loss of electrons from some chemical species.
True
False
The oxidation state of a species undergoing oxidation decreases
True
False
The oxidation state of the species undergoing reduction is
decreased
increased
no change
The species that is oxidized is a reductant.
True
False
The redox reaction in a galvanic cell is an example of spontaneous reaction.
true
false
Kind of cell in the picture
galvanic
electrolytic
Using iron as a cathode to prevent corrosion
cathodic protection
passivation
galvanization
coating
The species oxidized in corrosion
Fe
O2
Mg
Species reduced in corrosion
O2
Fe
Mg
Salinity favors corrosion.
True
False
Kind of cell in the picture
electrochemical
voltaic
electrolytic
galvanic
Uses electrical energy to pump electrons.
galvanic cell
voltaic cell
electrochemical cell
electrolytic cell
Electrolytic cell is based on a spontaneous reaction.
true
false
Voltaic cell in which the reactants can be supplied continuously and the products of the cell reaction are continuously removed
fuel cells
alkaline battery
secondary cells
primary cells
Alkaline battery is an example of
primary cells
secondary cells
fuel cells
electrolytic cells
Lead acid storage battery is an example of
primary cells
secondary cells
fuel cells
electrolytic cells
In the reaction: Fe + Cu2+ --->Fe2+ + Cu
What species is oxidized?
Fe
Cu2+
Fe2+
Cu
In the reaction: Fe + Cu2+ --->Fe2+ + Cu
What species is reduced?
Fe
Cu2+
Fe2+
Cu
In the reaction: Fe + Cu2+ --->Fe2+ + Cu
What is the oxidant?
Fe
Cu2+
Fe2+
Cu
In the reaction: Fe + Cu2+ --->Fe2+ + Cu
What is the reductant?
Fe
Cu2+
Fe2+
Cu
In the reaction: Fe + Cu2+ --->Fe2+ + Cu
How many electrons are gained?
2
0
4
6
In the reaction: Fe + Cu2+ --->Fe2+ + Cu
How many electrons are lost?
0
2
4
6
In the reaction: Fe + Cu2+ --->Fe2+ + Cu
Which half-reaction can be found in the anode?
Fe + 2e- ----> Fe2+
Fe ----> Fe2+ + 2e-
Cu2+---->Cu + 2e-
Cu2+ + 2e----> Cu
In the reaction: Fe + Cu2+ --->Fe2+ + Cu
Which half-reaction can be found in the cathode?
Fe + 2e----> Fe2+
Fe----> Fe2+ + 2e-
Cu2+ + 2e- -----> Cu
Cu +2e ----> Cu2+
In the reaction: Fe + Cu2+ --->Fe2+ + Cu
What is your cathode electrode?
Fe
Cu
In the reaction: Fe + Cu2+ --->Fe2+ + Cu
What is your anode electrode?
Fe
Cu
Assuming that the redox reaction in the galvanic cell:
Fe + Cu2+ --->Fe2+ + Cu
What is the movement of electrons?
Fe to Cu
Cu to Fe
Species passing in the salt bridge
cation
anion
cation and anion
electrons
A salt bridge can be found in the electrolytic cell.
True
False
The charge of anode in the galvanic cell
+
-
0
The charge of cathode in a galvanic cell
+
-
0
Charge of cathode in eletrolytic cell
+
-
0
The cations in a galvanic cell moves toward the
cathode
anode
The anions move towards the _______in a galvanic cell.
anode
cathode
