Question

How many grams of the reactant in excess will remain after the reaction?

Answer 1

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 137.00 g of Si and 125.00 g of Cr2O3.