Mark Scheme (Results) Summer 2013 International GCSE ...
Aug 23, 2013 · M2 – (water is needed) to form hydroxide ions/OH— M1 – iron(III)/Fe3+ M2 – ammonium/NH 4 + If both names and formulae given both must be correct lithium and calcium/Li and Ca to form an alkali/an alkaline solution/ammonium hydroxide to dissolve the ammonia ammonia needs to be aqueous ferric Ca+ etc any other oxidation ammonia 1 1 1 1 1 ...
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