Posted by Heather on .
a.Calculate which one of the reactants will be used up if 20g of Fe is mixed with 10g of S and heated.
b.How many grams of the other reactant were in excess?
Physical Science -
It depends upon which iron sulfide is formed. There are four formula varieties. Is it ferric (Fe2S3) or pyrite (FeS2)? or one of the others?