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.
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here are the answers to the questions from the image: 5. The flow chart below outlines some of the processes involved during extraction of lead. (i) Identify process T. Process T is Concentration (or Froth flotation). (ii) Give the name of: Gas N: Carbon dioxide (CO_2) Solid J: Slag (iii) Give two functions of CaCO_3 in the extraction process. 1. It decomposes to form calcium oxide (CaO), which acts as a flux. 2. The flux reacts with acidic impurities (like silica, SiO_2) to form slag, which is easily removed. (iv) Write an equation to show how waste product J is formed. CaO(s) + SiO_2(s) CaSiO_3(l) (where CaSiO_3 is the slag, J) (v) Pure lead can be obtained by electrolysis. Identify the anode and cathode for the process. Anode: Impure lead Cathode: Pure lead (vi) State two uses of lead. 1. Used in the manufacture of car batteries (lead-acid batteries). 2. Used as radiation shielding (e.g., in X-ray rooms). 6. (a) Name the process in which sodium metal is extracted. The process is the Downs process. (b) What is the function of calcium chloride during extraction of sodium metal? Calcium chloride (CaCl_2) is added to lower the melting point of the electrolyte (molten sodium chloride) from about 801^ to around 600^, which reduces energy costs. Drop the next question! 📸