Redox

Beschreibung

AS - Level Chemistry (4 - Acids and Redox) Karteikarten am Redox, erstellt von Bee Brittain am 20/04/2016.
Bee Brittain
Karteikarten von Bee Brittain, aktualisiert more than 1 year ago
Bee Brittain
Erstellt von Bee Brittain vor mehr als 8 Jahre
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Zusammenfassung der Ressource

Frage Antworten
Oxidation Number - Definition Can be thought of as the number of electrons involved in bonding to a different element. Can be used to check when balancing equations
Oxidation Number - Rules (3) - Always 0 for elements - Each atom in a compound has an oxidation number - An oxidation number has a sign which is places before the number
Oxidation number of Oxygen, O -2
Oxidation number of Hydrogen, H +1
Oxidation number of Fluorine, F -1
Oxidation number for ions: Mg 2+ and Ca 2+ +2
Oxidation number for ions: Br- , Cl - and I- -1
Oxidation number for H in metal Hydrides -1
Oxidation number for O in peroxides -1
Oxidation number for when O is bonded to F +2
Oxidation Oxidation is losing electrons and an increase in oxidation number
Reduction Reduction is gaining electrons and a decrease in oxidation number
Redox Reactions Involve reduction AND oxidation. If a substance is oxidised another substance must be reduced
Disproportionation Reaction Where a substance is reduced whilst simultaneously being oxidised
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