Could I get help please
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Physics, 21.06.2019 21:00
Iron reacts with sulfur to form iron sulfide. if 60 grams of iron reacts with sulfur to produce 90 grams of iron sulfide, how much sulfur has been used in the chemical reaction?
Answers: 3
Physics, 21.06.2019 22:40
Which feature indicates that mars resides in the inner region of the solar system
Answers: 3