1
Q
What is electrolysis?
A
Passing electric current through an ionic substance that is molten or in solution, to break it down into elements.
2
Q
What do electrolytes contain?
A
Free ions - the molten/dissolved ionic substance.
3
Q
Describe the flow of electrons in electrolysis.
A
Electrons are taken from ions at the anode and given to ions at the cathode.
4
Q
What happens as the ions gain/lose electrons during electrolysis?
A
They become atoms and are released.
5
Q
What is reduction?
A
The gain of electrons.
6
Q
What is oxidation?
A
The loss of electrons.
7
Q
What does electrolysis always involve?
A
An oxidation & a reduction.
8
Q
What does electrolysis mean?
A
Splitting up with electricity.
Chemistry
flashcards
Decks in class (26)
# Cards
-
C3 - History Of The Periodic Table10
-
C3 - The Modern Periodic Table5
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C3 - Group 1: Alkali Metals9
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C3 - Group 7: The Halogens10
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C3 - Transition Elements14
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C3 - Tests For Negative Ions8
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C3 - Hardness Of Water18
-
C3 - Water Quality12
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C3 - Reversible Reactions11
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C3 - The Haber Process14
-
C3 - Alcohols21
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C3 - Carboxylic Acids11
-
C3 - Esters12
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C3 - Test For Positive Ions6
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C3 - Getting Energy From Hydrogen15
-
C2 - Ionic Bonding8
-
C2 - Covalent Substances15
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C2 - Acids And Alkalis21
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C2 - Energy Transfer In Reactions16
-
C2 - Acids Reacting With Metals3
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C2 - Oxides, Hydroxides & Ammonia8
-
C2 - Making Salts6
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C2 - Electrolysis8
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C2 - Electrolysis Of Sodium Chloride Solution5
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C2 - Extraction Of Aluminium6
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C2 - Electroplating5
