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Cr2O3 + 2Al = 2Cr +Al2O3 If 150g of Cr2O3 and 150 g of Al are...

Cr2O3 + 2Al = 2Cr +Al2O3
If 150g of Cr2O3 and 150 g of Al are reacted. How much of the excess reactant will be used? (Check for limiting reactant)
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