Electrolysis Flashcards
What is an electrode?
The terminal at which electricity enters or leaves the electrolyte.
What is an ion?
A charged particle.
What is an anion?
A negatively charged particle.
What is a cathode?
The negative electrode.
What is electrolysis?
Splitting up an ionic compound, to form two new products, using electricity.
What is a cation?
A positively charged particle.
What is an anode?
The positive electrode.
What is an electrolyte?
A substance which can conduct electricity in its molten or dissolved state.
Electrolyte
A liquid that undergoes electrolysis
Electric current
A flow of charge
Solid that conducts electricity
Conductors
Solid that doesn’t conduct electricity
Insulator
Liquid/ solution that conducts electricity
Electrolyte
Liquid/ solution that doesn’t conduct electricity
Non- electrolyte
What are electrodes usually when setting up a practical
Inert and made of graphite
Oxidation
Loss of electrons
Reduction
Gain of electrons
Electrolysis
the chemical change caused by passing an electric current through a compound that is molten or in solution. electric current is used to break down an electrolyte
What happens during Electrolysis
-the electrolyte (made up of + and - ions) is split up by the current
-the ions are free to move when the electrolyte melts
Changes to the electrodes during electrolysis
-ions move to the oppositely charged electrode
-ions gain or lose electrons to become neutral atoms
-both reduction and oxidation occur
