'Al 3 3e al' diaporamas de présentation

Chapter 20

Chapter 20. Electrochemistry. Oxidation States electron bookkeeping * NOT really the charge on the species but a way of describing chemical behavior. Oxidation: Loss of electrons Reduction: Gain of electrons

353 views • 27 slides

Chapter 20

Chapter 20. Electrochemistry. Oxidation States electron bookkeeping * NOT really the charge on the species but a way of describing chemical behavior. Oxidation: Loss of electrons Reduction: Gain of electrons

342 views • 27 slides

Application of Electrolytic Cells Lesson 11

Application of Electrolytic Cells Lesson 11. Electrolysis describes what happens in an electrolytic cell and means to use electricity to make chemicals . Many elements are made by electrolysis Pb Al Zn Na K Li H 2 Cl 2 F 2 I 2 O 2 Pb 2+ + 2e - ? Pb (s)

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Application of Electrolytic Cells Lesson 11

Application of Electrolytic Cells Lesson 11. Electrolysis describes what happens in an electrolytic cell and means to use electricity to make chemicals . Many elements are made by electrolysis Pb Al Zn Na K Li H 2 Cl 2 F 2 I 2 O 2 Pb 2+ + 2e - ? Pb (s)

333 views • 24 slides

Production and Uses of Metals

Production and Uses of Metals. CHEMISTRY 2. Additional Science. Chapter 8. e.g. gold. Pyrite (a mineral of iron - sulphide). Haematite (a mineral of iron - oxide). Iron pan. Metals are produced from their ores by a process called reduction. Metallic minerals.

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Aluminium

Aluminium. Extraction and Uses. Aluminium Mining. Aluminium Ore is called Bauxite. Bauxite is a red mineral made of aluminium oxide and iron oxides. Bauxite is mined in various places, e.g. Russia, Jamaica. Bauxite Purification. Bauxite is heated with sodium hydroxide.

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Electrochemistry and Society

Electrochemistry and Society. Corrosion = oxidation of pure metals to their oxides Corrosion Basics Metals (M o ) are easily oxidized to cationic forms (M n+ ) [Table 18.1] e o 1/2 of O 2 gas reduction > oxidation of most metals

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Extraction of Aluminium

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