I'm not sure, but maybe burning point...
think it maybe 48 mg0 because there should be 2g magnesium in the word equation
4FeS2 + 11O2-> 2Fe2O3 + 8SO2
Not sure.... I think this is it
<span>Although two centuries old, Dalton's atomic theory remains valid in modern chemical thought. 1) All matter is made of atoms. Atoms are indivisible and indestructible. 3) Compounds are formed by a combination of two or more different kinds of atoms.</span>