Chromium metal can be produced from the high temperature reaction Cr2O3 [chromium ||| oxide ] with silicon or aluminum by each of the following reactions
Cr2O3 + 2 Al -> 2 Cr + Al2O3
2 Cr2O3 + 3Si -> 4 Cr + SiO2
Calculate the number of grams of aluminum required to prepare 327g of chromium metal by the first reaction
Calculate the number of grams of silicon required to prepare 327g of chromium metal by the second reaction