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WorksheetsBATTERIE
Total questions: 16
Worksheet time: 13mins
Name
Class
Date
1.
a cell that has a liquid electrolyte
a)
wet cells
b)
dry cells
c)
electrolytes
d)
electrodes
2.
Alkaline cells get their name from the fact that the electrolyte they use is a strong alkaline solution like potassium hydroxide. The high conductivity of the solution and the powdered zinc electrodes give the alkaline cell performance advantages over the standard zinc-carbon cells. The alkaline cells have a higher energy density, longer shelf life and lower internal resistance.
A typical alkaline cell utilises the half-reactions shown.
The overall equation occurring in this cell during discharge will be:
A typical alkaline cell utilises the half-reactions shown.
The overall equation occurring in this cell during discharge will be:
a)
2MnO2(aq) + Zn(s) → Mn2O3(s) + ZnO(s)
b)
2MnO2(aq) + H2O(l) + Zn(s) → Mn2O3(s) + ZnO(s) + 2OH-(aq)
c)
2MnO2(aq) + ZnO(s) → Mn2O3(s) + Zn(s)
d)
Mn2O3(s) + ZnO(s) → 2MnO2(aq) + Zn(s)
3.
liquid in a battery that allows electrons to move from one metal to the other (fruit juice, vinegar)
a)
Wet Cells
b)
Dry Cells
c)
Electrolyte
d)
Electrodes
4.
a type of cell that contains solid or pastelike electrolytes
a)
Wet Cells
b)
Dry Cells
c)
Electrolytes
d)
Electrodes
5.
a cell that has a liquid electrolyte
a)
wet cells
b)
dry cells
c)
electrolytes
d)
electrodes
6.
2 different metals that lose or gain electrons in a battery (zinc and copper
a)
wet cells
b)
dry cells
c)
electrolytes
d)
electrodes
7.
a device that converts chemical energy into electrical energy and is made of two or more cells
a)
battery
b)
cell
c)
electrolyte
d)
electrode
8.
a device that converts chemical energy into electrical energy
a)
battery
b)
cell
c)
electrolyte
d)
electrode
9.
Reduction happens at the
a)
anode
b)
cathode
c)
salt bridge
d)
voltmeter
10.
Oxidation happens at the
a)
anode
b)
cathode
c)
salt bridge
d)
voltmeter
11.
This electrode in a voltaic cell gains mass
a)
anode
b)
cathode
12.
This electrode loses mass
a)
anode
b)
cathode
13.
Reactions in voltaic cells are
a)
spontaneous, redox reactions
b)
non-spontaneous, redox reactions
c)
spontaneous, non-redox reactions
d)
non-spontaneous, non-redox reactions
14.
In a voltaic cell, the half cell that receives anions from the salt bridge is
a)
cathode
b)
anode
15.
In a voltaic cell, the half cell that receives cations from the salt bridge is
a)
cathode
b)
anode
16.
What does OIL RIG mean?
a)
It's a pump used to remove oil from the ground
b)
Oxidation is losing protons, reduction is gaining protons
c)
Oxidation is losing electrons, reduction is gaining electrons
d)
Who knows?
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