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Please help me!!!!!!!!!

2007-12-02 12:44:50 · 2 answers · asked by Victoria B 2 in Science & Mathematics Chemistry

2 answers

Yes. Mercury is like water. It is a liquid at room temperature, but it can be frozen (below -38C) or vaporized (it boils at +357C) .

When I was a high school student in the early 1950's, we had assemblies, at which the whole school would turn out in the auditorium for a performance of a man demonstrating liquid oxygen. He demonstrated that mercury was a liquid. But then he would put a stick into some liquid mercury, immerse the whole thing in liquid oxygen, and then use the stick and frozen mercury to mammer a nail into wood.

Nowadays, we realize tat mercury is dangerous. Even if it boils at 357C, there is enough mercury vapor in the air at 20C-25C (68F-77F) to harm people who breathe it.

2007-12-02 13:00:41 · answer #1 · answered by steve_geo1 7 · 2 0

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Just about every solid can turn into a liquid and then a gas if you apply enough heat. I was thinking first of carbon dioxide, which goes from dry ice to a liquid to a gas, but it can go directly between those stages solid/gas (sublimation). Mercury is another example - freeze it into a solid or vaporize it

2016-04-05 22:32:13 · answer #2 · answered by Anonymous · 0 0

Yes, mercury has a Solid phase, Liquid phase, and a Gaseous phase. However, the solid phase may not exist on this planet.

Melting point 234.32 K
(-38.83 °C, -37.89 °F)
Boiling point 629.88 K
(356.73 °C, 674.11 °F)
Critical point 1750 K, 172.00 MPa
Heat of fusion 2.29  kJ·mol−1
Heat of vaporization 59.11  kJ·mol−1
Heat capacity (25 °C) 27.983  J·mol−1·K−1

The above values are taken from Wikipedia.com/Mercury(element)

Basically, if an element has a freezing point, it can be solid on this planet, Melting point - Liquid, Boiling point - Gas

If you think about this, it makes sense because a solid which melts becomes a liquid, and a liquid which boils becomes a gas.

2007-12-02 13:00:33 · answer #3 · answered by ChemPhys 2 · 2 0

mercury is one of those elements that take alot of cooling to freeze it but the problem with freezing it is that even you freeze it liquid nitrogen tends to kill the element it cant be evaporized

2007-12-02 12:52:24 · answer #4 · answered by xochitlbear 2 · 1 2

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