1721368
Descrição
Mapa Mental por miriam.turner, atualizado more than 1 year ago
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Criado por miriam.turner
aproximadamente 11 anos atrás
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Electrolysis C2
- General
- electrolysis: splitting up with electricty
- liquid
- to conduct electricity
- electrolyte
- to conduct electricity
- electrolysis: splitting up with electricty
- Cathode
- negative
- gives out electrons
- reduction reaction
- gain of electrons
- gain of electrons
- +ve ions attracted here
- reduction reaction
- negative
- Anode
- takes in electrons
- positive
- oxidation
- loss of electrons
- loss of electrons
- takes in electrons
- Sodium Chloride
- dissolved in water
- hydrogen, chlorine, sodium hydroxide
- Hydrogen gains an electron at the cathode
- Chlorine is produced at the anode
- Chloride is an anion
- Chloride is an anion
- sodium remains in solution
- more reactive than hydrogen
- Cation (ion)
- Cation (ion)
- NaOH left
- more reactive than hydrogen
- dissolved in water
- Lead Bromide
- Lead at cathode
- Bromine at anode
- Molten
- Lead at cathode
- Extracting Aluminium
- from Bauxite ore
- has a high melting point (2000C)
- very expensive
- so is dissolved in Cryolite
- brings temp. down to 900C
- easier and cheaper
- easier and cheaper
- brings temp. down to 900C
- very expensive
- Carbon electrodes
- conduct electricity
- Aluminium at cathode
- Oxygen at anode
- reacts with Carbon anode
- Carbon Dioxide
- replace anodes
- replace anodes
- Carbon Dioxide
- reacts with Carbon anode
- conduct electricity
- from Bauxite ore
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