Analía Bellizzi – Chemistry Classes

Ronald Reagan Senior High School


From your syllabus
1 Describe the ease in obtaining metals from their ores, related to the position of the metal in the reactivity series
2 Describe the extraction of iron from hematite in the blast furnace, limited to:
(a) the burning of carbon (coke) to provide heat and produce carbon dioxide
(b) the reduction of carbon dioxide to carbon monoxide
(c) the reduction of iron(III) oxide by carbon monoxide
(d) the thermal decomposition of calcium carbonate /limestone to produce calcium oxide
(e) the formation of slag
Symbol equations are not required
3 State that the main ore of aluminium is bauxite and that aluminium is extracted by electrolysis

4 State the symbol equations for the extraction of
iron from hematite
(a) C + O2 → CO2
(b) C + CO2 → 2CO
(c) Fe2O3 + 3CO → 2Fe + 3CO2
(d) CaCO3 → CaO + CO2
(e) CaO + SiO2 → CaSiO3
5 Describe the extraction of aluminium from
purified bauxite / aluminium oxide, including:
(a) the role of cryolite
(b) why the carbon anodes need to be regularly
(c) the reactions at the electrodes, including
ionic half-equations
Details of the purification of bauxite are not