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Solution: 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? 

Problem

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? 


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