Question

14 Question (a points) See page 302 Native" or elemental copper can be found in nature, but most c opper is mined as oxide or sulfide minerals. Chalcopyrite (CuFeS,) is one copper to elemental copper in a series of chemical steps. Reacting chalcopyrite with oxygen at high temperature produces a by reaction with sand (SiO2l. CuS is converted to Cu,S in the process mixture of copper sulfide and iron axide. The iron oxide is separated from Cus and the Cu Sis burned in air to produce Cu and SO 2cuFes2+302CuS 2Feo+250

Answer 1

e hn A bove reachar Can be summort is es Cu 63.5 Molar ms ofp cufe1 a:42- liven nat rto f moles ie 4- l oo 6 4 hol

wie nces s needed tor 128 2nol of cu s Amro o.cu dles of Cus heeta heeded. Nlous under 64 Hield '64 18 00S mole