Transcription of UNIT 6 REDOX REACTIONS - A-Level Chemistry
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UNIT 6 REDOX REACTIONS - A-Level Chemistry
unit 6 REDOX REACTIONS 1 unit 6 REDOX REACTIONS Student Version Contents (a) Oxidation and Reduction (b) REDOX REACTIONS (c) Examples of common REDOX REACTIONS (d) Qualitative Analysis Part 2 REDOX REACTIONS (e) Galvanic Cells (f) Electrolysis (g) The Rusting of Iron Key words: oxidation, reduction, oxidation number, oxoanion, oxidising agent, reducing agent, half-equation, REDOX reaction, rusting, galvanisation, electrode potential, electromotive force (emf), potential difference, standard hydrogen electrode, primary electrochemical cell, secondary electrochemical cell, Daniell cell, dry cell, fuel cell, sacrificial cathodic protection, electrolysis, electrolytic cell, anode, cathode, electrolyte, Faraday, electroplating Units which must be completed before this unit can be attempted: unit 1 Atoms and the Periodic Table unit 2 Particles, Structure and Bonding unit 3 Amount of Substance unit 4 Introduction to Physical Chemistry unit 5 Acids, Bases and Salts Estimated Teaching Time.
UNIT 6 – REDOX REACTIONS 6 • The oxidation number of an atom is the charge that would exist on an individual atom if the bonding were completely ionic • In simple ions, the oxidation number of the atom is the charge on the ion: - Na+, K+, H+ all have an oxidation number of +1 - Mg2+, Ca2+, Pb2+ all have an oxidation number of +2 - Cl-, Br-, I-all have an oxidation number …
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