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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 107.00 g of Si and 149.00 g of Cr2O3. Part 1 (1 point) Select the limiting reactant. Choose one or more: (i) Cr (ii) Cr2O3(iii) SiO2 (iv) SiPart 2 (1 point) How many grams of the excess reactants are left after the reaction is completed?

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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 107.00 g of Si and 149.00 g of Cr2O3

Part 1 (1 point) 

Select the limiting reactant. 

Choose one or more: 

(i) Cr 

(ii) Cr2O3

(iii) SiO2 

(iv) Si

Part 2 (1 point) 

How many grams of the excess reactants are left after the reaction is completed?

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Our tutors have indicated that to solve this problem you will need to apply the Limiting Reagent concept. If you need more Limiting Reagent practice, you can also practice Limiting Reagent practice problems.