An important source of copper is from the copper ore, chalcocite, a form of copper (I) sulfide. When heated, the Cu2S decomposes to form copper and sulfur described by the following equation:
(a) Determine
b) The reaction of sulfur with oxygen yields sulfur dioxide as the only product. Write an equation that describes this reaction, and determine
(c) The production of copper from chalcocite is performed by roasting the Cu2S in air to produce the Cu. By combining the equations from Parts (a) and (b), write the equation that describes the roasting of the chalcocite, and explain why coupling these reactions together makes for a more efficient process for the production of the copper.
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Chemistry Atoms First2e
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- The free energy for a reaction decreases as temperature increases. Explain how this observation is used to determine the sign of either H or S.arrow_forwardPredict the sign of S, if possible, for each of the following reactions. If you cannot predict the sign for any reaction, state why. a HCl(g)+NH3(g)NH4Cl(s) b N2(g)+3H2(g)2NH3(g) c 2SO2(g)+O2(g)2SO3(g) d CH3OH(l)+32O2(g)CO2(g)+2H2O(g)arrow_forwardFrom the values for G f given in Appendix 1, calculate G at 25C for each of the reactions in Question 19.arrow_forward
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