AS Chemistry - Redox 4.0 / 5 based on 2 ratings ? ChemistryRedoxASOCR Created by: ambermeganjonesCreated on: 24-04-16 18:15 The oxidation number of atoms in all elements is .. always 0 1 of 11 The oxidation number of a simple ion is always.. equal to the charge on the ion 2 of 11 The sum of all oxidation numbers for each atom (or ion) within a compound must equal.. zero 3 of 11 The sum of all oxidation states for each atom within a molecular ion must equal.. the overall charge of the ion 4 of 11 The oxidation states of bonded group I and group II metals are usually.. +1 and +2 respectively 5 of 11 The oxidation state of Hydrogen is usually.. +1 except for metal hydrides 6 of 11 The oxidation state of oxygen is usually.. -2 except from peroxides where it is -1 7 of 11 What does a roman numeral correspond to? The positive oxidation number 8 of 11 What would happen to the oxidation number if an atom lost electrons? Oxidation number will increase 9 of 11 What would happen to the oxidation number if an atom gained electrons? Oxidation number will increase 10 of 11 What is disproportionatation? a special type of redox reaction in which the same atom is both oxidised and reduced. 11 of 11
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