Electrolysis Flashcards
What conducts the electricity and allows the whole process to work?
Free ions
What does electrolysis mean?
Splitting up with electricity
What is the electrolyte?
A liquid that conducts the electricity
Electrolytes are usually …..
Free ions dissolved in water
What happens at the positive anode?
Electrons are taken away from the ions
What happens at the negative cathode?
The electrons are given to other ions
As ions gain or lose electrons they…
Become atoms or molecules and are released
What is concentrated brine?
Sodium chloride solution
What useful products are made from the electrolysis of brine?
Chlorine-used to kill bacteria
Hydrogen-used to make ammonia
Sodium hydroxide-used to make soap
Pure copper is deposited on the…
Pure cathode (-ve)
Copper dissolves from the…
Impure anode (+ve)
