Question

三.判断题(共18题,共36分)
42.for mercury objects splashed in the laboratory, they should be picked up as much as possible and sprinkled with sulfur, calcium polysulfide, etc. to make the mercury insoluble and insoluble salts. (2分)
○正确
○错误

Explanation:

When mercury objects are spilled in the laboratory, it is correct to pick up as much mercury as possible first. Then, sprinkling sulfur, calcium polysulfide, etc. can react with mercury. For example, sulfur reacts with mercury ($Hg + S = HgS$). Mercury sulfide ($HgS$) is an insoluble substance, which can reduce the harm of mercury vapor (mercury is volatile and toxic).

Answer:

Correct