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Mercury is a metal unlike water which have hydrogen bonding. Mercury does not wet most substances, because of its high cohesion and low adhesion to the glass mercury will not wet glass. Cohesion, along with adhesion(attraction between unlike molecules), can help explain mercury phenomena. Mercury has a surface energy over 6 times greater than that of water so there is a much greater attractive force between the atoms of mercury than between the molecules of water, so mercury does not wet glass.
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Why is mercury preferred to alcohol as a thermametric substance?
Mercury is preferred to alcohol as a thermometric substance primarily due to its wide liquid temperature range, remaining fluid at extremely low temperatures and not boiling until 356.7°C. Additionally, mercury has a high thermal conductivity, allowing for quick and accurate temperature readings. Unlike alcohol, mercury does not wet glass, preventing it from sticking to the sides of the thermometer and ensuring clear and consistent readings. Finally, mercury is less affected by changes in atmospheric pressure, which enhances measurement reliability.
Why is mercury a pure substance?
Mercury is considered a pure substance because it is made up of only one type of atom, which is mercury itself. It does not contain any impurities or other substances mixed in with it, making it a pure element.
Why is mercury not wet even though its liquid?
Mercury does not wet glass due to one of it's most significant properties. Mercury will not cling to the glass that contains it.
Is Hg pure substance a homogeneous mixture or a heterogeneous mixture?
Pure Substance.Hg stands for mercury. A pure substance is made of only one type of atom or molecule. Since mercury is an element, it is a pure substance.
Is a mercury alloy or amalgam considered a compound?
An amalgam is a substance formed by the reaction of some other substance, ANY substance, with mercury. Almost all metals can form amalgams with mercury, notable exceptions being iron and platinum. So the answer would depend on what you wish to amalgamate with mercury.
Is mercury substance or mixture?
Mercury is a pure substance, more specifically it is an element.
If the substance is warmer then the Mercury in the thermometer the Mercury will?
If Mercury (element) is heated then like every other substance it expands.
Is Mercury a heterogeneous?
No, mercury is a pure substance.
Does mold frow faster on a wet or dry substance?
It grows faster on a wet substance because its spores reproduce.
What is the advantages of mercury as a thermometric substance?
Mercury has a wide temperature range, high thermal conductivity, and a linear expansion coefficient, making it suitable for precise temperature measurements. Additionally, it does not wet the glass surface, allowing for accurate readings.
Is Mercury a substance or mixture?
Mercury is an element and therefore a pure substance.
Is mercury a common noun?
The planet Mercury and the substance mercury are both proper nouns.
Does mercury substance has weight?
The density of mercury is 13,534 g/cm3.
Is mercury the lightest substance in chemistry?
No, mercury has a very high density.
What is a magetic substance?
mercury Hg
Why is mercury a pure substance?
Mercury is considered a pure substance because it is made up of only one type of atom, which is mercury itself. It does not contain any impurities or other substances mixed in with it, making it a pure element.
Why is Mercury no longer used in most thermometers?
Mercury is a very poisonous substance.
