human
Why is it necessary to perform the reaction of Iron (Fe) with elemental Sulfur (S8) solution under a fume hood?
gpt
The fumes from burning S8 are toxic and irritating.
Explanation: Fume hoods are used to ventilate and remove hazardous fumes, protecting the experimenter from toxic substances. In this case, the sulfur fumes are harmful to humans, making it necessary to perform the reaction under a fume hood.