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Oxidation number
(a) rules for assigning and calculating oxidation number for atoms in elements, compounds and ions
(b) writing formulae using oxidation numbers
(c) use of a Roman numeral to indicate the magnitude of the oxidation number when an element may have compounds/ions with different oxidation numbers
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Redox reactions
(d) oxidation and reduction in terms of:
(i) electron transfer
(ii) changes in oxidation number
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(e) redox reactions of metals with acids to form salts, including full equations (see also 2.1.4 c)
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(f) interpretation of redox equations in (e), and unfamiliar redox reactions, to make predictions in terms of oxidation numbers and electron loss/ gain.
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