Fe2O3 (s) + 2Al(s)>2Fe (l) + Al2O3 (s) a- What masses of iron(III) oxide and aluminum must be used to
produce 15.0 g iron?

b- What is the maximum mass of aluminum
oxide that could be produced?

Ithink it’s 3 as the answer.

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.

The correct answer is "hydrogen".

Answeramino acids;