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Electrolysis
For each sample then predict what will be produced at the cathode (-) and anode (+),
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Quiz Questions
Potassium Chloride (molten)
4 балла
Ions present
Produced at cathode ( -)
Produced at anode (+)
Cl-
K
H+
O 2-
Cl2
K+
H2
O2
Ions present
Produced at cathode ( -)
Produced at anode (+)
Cl-
K
H+
O 2-
Cl2
K+
H2
O2
Aluminium oxide (molten)
4 балла
Ions present
Produced at cathode ( -)
Produced at anode (+)
Al
Al 3+
O2
H2
H+
OH-
O 2-
Ions present
Produced at cathode ( -)
Produced at anode (+)
Al
Al 3+
O2
H2
H+
OH-
O 2-
Copper Chloride (Solution)
6 баллов
Ions present
Produced at cathode ( -)
Produced at anode (+)
H+
OH-
O2
H2
Cl2
Cl-
Cu 2+
Cu
Ions present
Produced at cathode ( -)
Produced at anode (+)
H+
OH-
O2
H2
Cl2
Cl-
Cu 2+
Cu
Sodium Bromide (Solution)
6 баллов
Ions present
Produced at cathode ( -)
Produced at anode (+)
Na
Br2
H2
O2
Na +
H+
OH-
Br-
Ions present
Produced at cathode ( -)
Produced at anode (+)
Na
Br2
H2
O2
Na +
H+
OH-
Br-
Silver Nitrate (Solution)
6 баллов
Ions present
Produced at cathode ( -)
Produced at anode (+)
OH-
Ag +
Ag
H2
O2
NO3 -
H+
Ions present
Produced at cathode ( -)
Produced at anode (+)
OH-
Ag +
Ag
H2
O2
NO3 -
H+
Potassium chloride (Solution)
6 баллов
Ions present
Produced at cathode ( -)
Produced at anode (+)
Cl2
K+
K
Cl-
O2
OH-
H+
H2
Ions present
Produced at cathode ( -)
Produced at anode (+)
Cl2
K+
K
Cl-
O2
OH-
H+
H2
Zinc Sulphate solution (Solution)
6 баллов
Ions present
Produced at cathode ( -)
Produced at anode (+)
SO4 2-
O2
OH-
Zn 2+
H2
Zn
H+
Ions present
Produced at cathode ( -)
Produced at anode (+)
SO4 2-
O2
OH-
Zn 2+
H2
Zn
H+
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