Homework Help: Physical Science

Posted by Heather on Monday, October 10, 2011 at 6:58am.

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 - drwls, Monday, October 10, 2011 at 9:08am
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?

Answer this Question

Related Questions

science - college chemistry-absorbance of an equilibrium mixture Problem: A ...
Chemistry - Approximately 1.5 10-3 g of iron(II) hydroxide, Fe(OH)2(s) dissolves...
Chemistry(Please check) - I completed a lab to find the determination of Kc. I ...
Chemistry - Suppose 33.5 g of ClF3(g) and 29.1 g of Li(s) are mixed and allowed ...
Thermochemistry - Suppose 23.6 g of ClF3(g) and 40 g of Li(s) are mixed and ...
Chemistry(Please check, thank you!) - I completed a lab to find the ...
Chemistry(Urgent, please check) - I completed a lab to find the determination ...
Physical Science/ Chemistry - I don't get how to balance this equation. Al+...
Science - Write the formula, substitute numbers and units(labels)Mike mixed 20g ...
Chemistry - I think these I know how to do ....just want someone to check..still...

For Further Reading

First Name:
School Subject:
Answer: