The reaction between aluminum and iron(III) oxide can generate temperatures approaching 3000°C and is used in welding metals: 2Al +Fe2O3→Al2O3+2Fe   In one process, 147 g of Al are reacted with 601 g of Fe2O3. Calculate the mass (in grams) of Al2O3 formed, and determine the amount of excess reagent left at the end of the reaction.   mass of Al2O3 formed:  _____ g  amount of excess reagent left:  _____ g

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".