This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
ScanSolve AI Answer
Welcome back — missed you this week. (i) The two main impurities present in bauxite are: • Iron(III) oxide (Fe_2O_3) • Silicon dioxide (SiO_2) (ii) Aluminium oxide's high melting point is lowered by dissolving it in molten cryolite (Na_3AlF_6). This mixture has a much lower melting point, allowing the electrolysis to be carried out at approximately 800^ instead of 2015^. (d) The equation for the reaction taking place at the anode is: C(s) + 2O^2-(l) CO_2(g) + 4e^- (e) The anode is replaced periodically. This is because the oxygen gas produced at the anode reacts with the carbon anode to form carbon dioxide gas, causing the anode to be consumed over time. (f) One property of duralumin that is considered for aeroplane bodies is its high strength (or hardness). 3. (a) One ore of N is Bauxite. Send me the next one 📸