Question

You work as a chemical engineer, processing metal ores to produce pure metals. You have decided to use a variation on the Hall-Heroult process where the metal ore is melted. After, the molten metal ions are reduced and the metal is plated out of the liquid. Considering that the process of heating is cost prohibitive, and that low melting temperatures are preferred, select which ore for each metal will be best for your process. Iron: Magnetite: Fe_3O_4 Black Iron Sulfide: Iron(II) Sulfide Hematite: Iron (III) Oxide Aluminum: Gibbsite: Aluminum Hydroxide Alumina: Aluminum Oxide Aluminum Sulfide Magnesium: Magnesia: Magnesium Oxide Bischofite: Magnesium Chloride Forsterite: Mg_2SiO_4 Calcium: Gypsum: Calcium Sulfate Fluorite: Calcium Fluoride Ice Melt: Calcium Chloride Enter a four digit number, representing the four numbers of the best' substance in each set. For example, if you believe the best' are hematite (#3), Gibbsite (#1), Forsterite (#3), and Fluorite (#2), you would enter 3132.

Answer 1

Solulion One 5 38 °c Gri bb site Aludunu 시 dveud esO4) aaye 3000 Sulbide 1194 G Heuelite Alukun 207a"c Oxide 1mm(m) oxide 1565 Alu Sulde 1100℃ C&s Proces s nfale Caleru One oaude calciu队 5 fis choite Fluoite 403 C 6 Foxstente: 1810 C tuende Bitore wsu be is Cho ite Best ove uill be icesat Ice Helt (# 4) Thunfee e jour digt nusber e is 21 24