is the chemical in a thermometer still mercury or has it now changed?
823584
In a mercury thermometer it is. Most common household thermometers will have a red or blue or some color other than silver inside, and these use a variety of other substances. Mercury thermometers will appear silvery in the center.
588354
might be  mercury compound(only  Mercury can dissolved gold))
1171639
When the temperature rises, the particles of the mercury in the thermometer gain kinetic energy. This means that they start moving around more vigorously. The particles push away neighbouring particles. This increases the space between the particles and causes an increase in the volume of a mercury. Expansion is said to have occured.
1150484
Mercury is cheaper to produce and, thus, saves overhead. Mercury also preserves and products the products it encases and is a very good indicator of temperature. Mercury also stays relatively cool in most conditions so it preserves. I agree though, Mercury, in significant amounts, can cause serious brain damage and even mental retardation if a person is exposed to a sample of mercury for too long or if the sample is large enough.
338944
You must be asking about mercury sulfide, HgS2, which is red.  It is quite dangerous.  If you do not use proper respiratory protection, wash thoroughly, and keep it out of the environment, you will get mercury poisioning by working with it.  You probably need a license to buy it.
1068779
Have you been drinking Mercury??
1087723
I saw a 60 minutes deal on this subject. There is mercury in vaccinations. More vaccinations nowadays. More mercury=Mercury poisoning=Autism
913339
Well, if you found a way to ingest it without it coming contact with oxygen, you would die due to explosions. Mercury is definitely a good candidate for toxicity. Remember the Mad Hatter? Hatters went mad from the mercury that they used to cure the felt used to make hats! \n\nMercury is a metalloid that is liquid at room temperature (the only other liquid metal at room temperature is bromine). \n\nMercury: symbol Hg; atomic # 80; atomic mass 200.59; \n\nMercury is extremely rare naturally and is usually obtained by doing something to cinnabar. \n\nAnything else? I don't know, but I'm sure wikipedia has a lot of info on mercury.
659896
Low specific heat is an advantage, and here's why.\n\nIn an ideal temperature measurement, the thermometer would not disturb the temperature of the object being measured.  A material with high specific heat would come into thermal equilibrium with the sample, but it would potentially absorb a significant amount of heat from the sample-- cooling it while the thermometer increased in temperature.  If you have a material with low specific heat, while it is equilibrating, it doesn't absorb much heat from the sample, so the temperature measured is closer to the real temperature of the sample.
62318
Chemical companies sell it.  check out this:\nhttp://www.sigmaaldrich.com/catalog/search/ProductDetail/SIAL/215457\nAldrich sells 99.9995% pure mercury.  That's as good as it's going to get.
517398
Magnesium and trace amonts of mercury.
73924
A mercury barometer works by the atmospheric pressure pushing down on a mercury reservoir, forcing the mercury up a tube against a scale.  The mercury is separated from the atmosphere by a flexible diaphram.\n\nAdjustment is usually made by adjusting a screw which moves the diaphram up or down so adjusting the height of the mercury column against the scale for a given atmospheric pressure.  Occassionaly the scale can be moved up and down to adjust.
1179375
Ethanol. with a coloring in it. Red or Blue usually.\n Hey all of you who are saying "mercury".....If you have a mercury thermometer in your home dispose of it quickly and safely! Even a small Mercury spill must be reported quickly as it can poison hundreds of people! It is considered as hazmat situation!! Contact with even tiny amounts of mercury can cause brain damage, birth defects and death. Mercury has no place in the home.
487220
Changing the subscripts will all together alterate the chemical.  It will be a completely different chemical.  The coefficients only define how much of that chemical is being used, but changing it won't change what type of chemical it is.
210537
mercury expands when heated.  not very much though, that's why it's in such a thin tube-- so the results are exaggerated, more visible, and more easily measured
237935
francium. mercury is technicaly not a metal, it just has a low melting point, low metling points do not make it unstable. if that were the case, then oxygen would be VERY unstable ITS ALREADY TURNED INTO VAPOR!!!
440758
Pascal (Same as Newton per Meter sqaure)\nmm of Hg (Mercury)