Inject a little mercury (Hg) into a horizontal glass capillary tube. The two ends of the horizontal mercury column are convex. If heating the right convex of mercury, the mercury in the capillary will move ( ).
A: to the left
B: to the right
C: to both ends
D: no
A: to the left
B: to the right
C: to both ends
D: no
B
举一反三
- The toxicity of alkyl mercury is 10-100 times greater than that of soluble inorganic mercury, is it right?
- The toxicity of alkyl mercury is 10-100 times greater than that of soluble inorganic mercury, is it right? A: 正确 B: 错误
- Mercury is a metal pollutant that can disrupt the ecosystem. Why is mercury so disruptive to the ecosystem? A: Organisms excrete the mercury out as waste. B: Organisms use mercury as an enzyme to speed up reactions in an organism's body. C: Mercury slows down the respiration rates of primary consumers. D: Mercury can become concentrated in the tissues of organisms.
- Mercury
- Mercury Seven are astronauts.
内容
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Mercury is a metallic element
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Queen are a British rock band that formed in London in 1970. What is the classic line-up of the band Queen? A: . Freddie Mercury and Brian May. B: . Freddie Mercury, Brian May and Roger Taylor. C: . Freddie Mercury, Brian May and John Deacon D: . Freddie Mercury, Brian May, Roger Taylor and John Deacon
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Mercury is the brightest planet in the sky.
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Mercury freezes if it is cooled to＿.
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At last, Mercury gave _______ axe(es) to him. A: one B: three C: Two