What you’ll learn5 learning objectivesChoose one objective for a focused lesson, or study the complete topic.9.6.1Ease in obtaining metals from their• Describe ease in obtaining metals from their ores, related to the position of the metal in the reactivity seriesSyllabus objective9.6.2Iron extraction from hematite in a• Describe iron extraction from hematite in a blast furnace: coke burns for heat/CO2; CO2 is reduced to CO; CO reduces iron(III) oxide; limestone decomposes to calcium oxide; slag forms. Symbol equations not requiredSyllabus objective9.6.3Main ore of aluminium is bauxite and• State: the main ore of aluminium is bauxite and that aluminium is extracted by electrolysisSyllabus objective9.6.4Symbol equations for the extraction of• State the symbol equations for the extraction of iron from hematite (a) C + O2 → CO2 (b) C + CO2 → 2CO (c) Fe 2O3 + 3CO → 2Fe + 3CO2 (d) CaCO 3 → CaO + CO2 (e) CaO + SiO2 → CaSiO3Syllabus objective9.6.5Aluminium extraction from purified• Describe aluminium extraction from purified bauxite/aluminium oxide: role of cryolite, why carbon anodes are replaced, and electrode reactions with ionic half-equations. Bauxite purification not requiredSyllabus objective