6 ? 020459 Be sure to answer all parts. The reaction between aluminum and iron(III) oxide can generate temperatures approaching 3000C and is used in welding metals: 2A1+Fe,0,- A1,0+2Fe In one process, 135 g of Al are reacted with 601 g of Fe,Og. Calculate the mass (in grams) of A1,0, formed, and determine the amount of excess reagent left at the end of the reaction, mass of ALOg formed: 9 amount of excess reagent left