0
Short Answer:
One expects mercury, like water, to bead more on a waxed surface and less on a painted or metallic surface.
Explanation:
The phenomena of beading of any liquid depends on the density of the liquid and the interfacial surface tension between the liquid and the surface with which it is in contact.
Mercury has a large surface tension normally. The mercury-air interface has a surface tension of about 482 dynes/cm compared to water-air which is about 72 dynes/cm. Both of these are larger than most other liquids. The water-mercury interface has a surface tension of 415 dynes/cm.
Both water and mercury decrease surface tension when in contact with a polar medium such as an alcohol.
Wax is very non-polar while paint is presumably slightly polar. Of course, metal would be more polar. (Perhaps polarizable is a better term.) One expects mercury, like water, to bead more on a waxed surface and less on a painted or metallic surface.
Add your answer:
Earn +20 pts
Why does water bead up on a waxed car but gasoline spreads out?
A waxed car is not hydrophilic, it is not wetted with water. A drop of water falling on such a surface does not speak out wetting the surface. Instead the surface tension of the water drop pulls it into a spherical shape that sits on top of the surface until it either slides off or evaporates.
What is the function of bead in the pipette?
The rationale of the bead in the WBC pipette is for recognition. Through the white bead present inside the pipette it would be easy for a medical technologist to determine the pipette that should be used for differential counting. Aside from identification purposes, white bead is also used as a signal during the shaking procedure that would indicate that the components inside the pipet are mixed.
Why do beads of water often form on a slippery surface such as a freshly waxed car?
Beads of water form on a slippery surface like a freshly waxed car because the surface tension of water causes it to bead up rather than spread out. The hydrophobic nature of the wax repels water, causing it to form into droplets instead of wetting the surface.
When was Bang Bead created?
Bang Bead was created in 2000.
List 3 basic liquids that do not wet a glass?
Mercury: Due to its high surface tension, mercury does not wet glass and forms droplets on its surface. Carbon tetrachloride: This liquid has low surface tension, which causes it to bead up on glass rather than spread out. Liquid bromine: Like mercury, liquid bromine does not wet glass due to its high surface tension property.
Why do water drops bead on a freshly waxed surface?
Water drops bead on a freshly waxed surface because the wax creates a hydrophobic barrier that repels water. This causes the water to form into beads instead of spreading out. The surface tension of the water also helps to maintain the spherical shape of the droplets on the waxed surface.
Why does water bead up on a waxed car but gasoline does not?
Water has a higher surface tension than gasoline, causing it to bead up on a waxed surface. The hydrophobic properties of the wax repel the water, leading to beading. Gasoline, on the other hand, has a lower surface tension than water and does not experience the same beading effect on a waxed surface.
Which property of water causes water drops to bead on s freshly waxed car?
Water molecules are sticky due to hydrogen bonds
What happens when you drop one drop of water on waxed paper?
When you drop one drop of water on waxed paper, the water will bead up and form a circular shape due to the hydrophobic properties of the wax. This occurs because the wax repels the water, preventing it from spreading out or being absorbed into the paper.
How do you put a bead on a silver chain?
The answer depends on the size of the bead and the size of the hole in the center of the bead, as wells the size of the chain. Take your bead and chain to a local bead shop. Ask the clerk if she has a sterling spring ring that would fit through th bead and around the chain. That would be the most reasonably priced solution. If not, someone at the store would proboably make you a little sterling hanger just for the price of materials. This would also be quite reasonable and quick. Making a silver hanger for the bead is very basic beading work. So, the shop would know someone to do it for you if they are too busy. Most bead stores offer classes. You might decide to take a class in beginning wire wrap, or working with head pins. Either would teach the techinque of putting a silver wire through the bead, making a loop around the chain, and neatly wrapping the wire at the bottom of the loop so it is secure. Presto, the bead is on your chain and looks great.
Why does water bead up on a waxed car but gasoline spreads out?
A waxed car is not hydrophilic, it is not wetted with water. A drop of water falling on such a surface does not speak out wetting the surface. Instead the surface tension of the water drop pulls it into a spherical shape that sits on top of the surface until it either slides off or evaporates.
What happens when you place liquid mercury on wax paper?
When liquid mercury is placed on wax paper, the mercury will not be absorbed or react with the wax paper due to the non-polar nature of wax. Instead, the liquid mercury will form droplets and bead up on the surface of the wax paper due to its high surface tension.
What is the function of bead in the pipette?
The rationale of the bead in the WBC pipette is for recognition. Through the white bead present inside the pipette it would be easy for a medical technologist to determine the pipette that should be used for differential counting. Aside from identification purposes, white bead is also used as a signal during the shaking procedure that would indicate that the components inside the pipet are mixed.
What is a cylinder bead?
A cylinder bead is usually called a bugle bead.
What is a rosary bead called to put ashes in?
There is no such bead on a Catholic rosary. The Catholic Church demands that the ashes of the deceased be respected, as the body would be respected, and buried.
Can a 215x60x15 tire work on a 15x6 wheel?
You could probably get the bead to seat, but it isn't ideal and would be more likely to break the bead when hitting potholes and such.
What can you spell with these letters wxdeban?
The letters WXDEBAN spell the phrase "bend wax."They can also form words such aswaned, waxed, waxenabed, anew, awed, axed, band, bade, bane, bead, bean, bend, dawn, dean, wand, wane, wean wend
