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The reaction of Cr2O3 with silicon metal at high temperatures will make chromium metal.
2Cr2O3 (s) +3Si(s) → 4Cr(l) + 3SiO2 (s)
The reaction is begun with 182.00 g of Si and 140.00 g of Cr 2O3.
How many grams of the excess reactant are left after the reaction is complete?