Скачать или смотреть Electrolysis Part 2/3 - Electrolysis to Extract Metals From Oxides

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** WHAT'S COVERED **
1. Extracting reactive metals from their oxides.
Comparison between reduction with carbon and electrolysis.
Explanation of why electrolysis is necessary for metals like aluminium.
2. The process of electrolysis for molten ionic compounds.
Requirement for molten state to ensure mobile ions (electrolyte).
3. Electrolysis of Aluminium Oxide (Alumina).
Detailed steps for electrolysis.
Reactions occurring at the electrodes.
Writing and understanding the half-equations for the anode and cathode.
Application of the OIL RIG mnemonic.
Deriving and balancing the overall chemical equation for the electrolysis of aluminum oxide.

** EXAM BOARD INFO **
This video is suitable for:
Both tiers (except the end which is for higher tier only from 4:15)
All exam boards
Triple and combined science

** CHAPTERS **
0:00 Intro: Extracting Reactive Metals
0:35 Reduction with Carbon vs Electrolysis
1:06 Why Electrolysis is Needed for Aluminum
1:59 Preparing Molten Aluminum Oxide (Purification & Cryolite)
2:40 Electrolysis Setup
3:19 Reactions at the Electrodes
4:18 Half Equations & OIL RIG
5:26 Overall Equation

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