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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?
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An element becomes a positively charged ion when itloses protons.loses electrons.gains electrons.gains neutrons.
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Plz and hurrywhat is kepler-186f? telescope used to investigate outer spacestar in another solar sy...
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