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There are 2 reasons why there will be oil on top and water on the bottom
1. Water and oil pot do not dissolve, so it is not like alcohol and water poured together to become an alcohol solution.
2. Oil is lighter than water, so the oil will float on top of the water.
Physical phenomena all around us.
1. The quartz clock hanging on the wall wall often stops at the position of "9" on the dial when the battery is exhausted and stops moving. This is due to the fact that the second hand is most hindered by the gravitational moment at the "9" position.
2. Sometimes when the water pipe discharges water from the adjacent faucet, there is an occasional burst of noise. This is due to the resonance of the water pipes caused by the water flushing out of the faucet.
3. When taking pictures of the TV screen, the camera flash and indoor lighting should be turned off, so that the ** picture is clearer. Because the reflected light from the flash and lighting on the TV screen can interfere with the transmitted light of the TV picture.
4. Frozen pork thaws faster in water than in air at the same temperature. Scalding nails cool down faster in water than in air of the same temperature. A cup filled with piping hot boiling water cools down faster when immersed in water than in air at the same temperature.
All these phenomena show that water has better heat transfer than air.
5. When the pot is filled with cold water, the water droplets attached to the outer surface of the bottom of the pot can be boiled dry on the flame for a long time, and it does not boil until it is boiled dry, which is due to the fact that the water droplets, the pot and the water in the pot maintain heat conduction, and the temperature is about the same, as long as the water in the pot is not boiling, the water droplets will not boil, and the water droplets are gradually burned dry by evaporation on the flame.
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Oil floats on the surface of the water because oil is lighter than water.
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If it's hot oil or cold water, be careful, it will jump up and give you a painful scar.
If the oil is hot and cooled, the oil will melt slowly.
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I was scolded by my mother.
Because you're wasting oil. Oil is very expensive now.
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Science Experiment: Mixing oil and water together, do you know what is happening?
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The main reasons why oil and water cannot be fused are: 1. Oil contains hydrophobic genes. 2. The density of the two is different.
3. The nature of the two is different. Oil and water are two substances that are indispensable in the daily life of people. Regarding "why oil and water can't be combined", if you are interested, you can continue to read and understand.
1. Oil contains hydrophobic genes.
Oil contains hydrophobic genes, and hydrophobic groups prevent oil from dissolving in water, making it impossible for the molecules of oil and water to bind.
2. The density of the two is different.
With the same volume of oil and water, the density of oil is generally between, the density of water at room temperature and pressure is 1g ml, and the density of oil is smaller than that of water.
3. The nature of the two is different.
Oil is an organic substance, water is an inorganic substance, and the properties of the two are different, so according to the principle of similarity compatibility, oil and water are not compatible with each other.
4. If you want to fuse oil and water with each other, you need to contact external conditions, such as: high temperature, high pressure or add catalysts, emulsifiers, etc.
<> because oil is less dense than water, if oil and water are poured together, the oil will float on the surface of the water and there will be a dividing line with the water, creating a state of "oil-water separation".
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Pour the water and oil into a beaker and add a grape and the grape will be between the water and the oil. This is because the density of oil is less than that of water, and oil and water do not dissolve each other, so the oil is in the upper layer and the water is in the lower layer. The main component of grapes is moisture, so the average density of grapes should be greater than that of oil and less than that of water.
As a result, the grapes will be located between water and oil.
Water (chemical formula: HO) is an inorganic substance composed of two elements, hydrogen and oxygen, and is non-toxic. It is a colorless and odorless transparent liquid at room temperature and pressure, and is known as the source of human life.
Water, including natural water (rivers, lakes, atmospheric water, seawater, groundwater, etc.), distilled water is pure water, artificial water (water obtained by combining hydrogen and oxygen atoms through chemical reactions). Water is one of the most common substances on the earth, an important resource for the survival of all life, including inorganic chemistry, and human beings, and is also known as the most important component of living organisms. Water has played an important role in the evolution of life.
It is a narrowly non-renewable, broadly defined renewable resource.
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There are 3 principles that arise when oil meets water:
1. Some are less dense than water and will float on top of water.
2. Oil can block air.
3. The boiling point of oil is much higher than that of oil.
The boiling point of water and oil is not the same, and the boiling point of water under normal conditions (normal air pressure) is 100 degrees. The boiling point of the oil is much higher, about 300 degrees, we usually fry vegetables or fry fish or something, it is customary to heat the oil in the pot, in fact, this so-called heat, is about at least 150 degrees or more, the oil at this temperature, there is basically no reaction, but if you put a little water in the hot oil at this time, (the water can not be much, because too much water will reduce the oil temperature,) after the water meets the hot oil in the pot, it will boil in the oil in an instant, vaporize, and its volume will rise rapidly, Because the process was so fast, we not only heard the cracking sound of the oil, but also saw the phenomenon of hot oil splashing around!
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The density of oil is less than that of water, and oil is lighter than water, so when oil meets water, oil floats on the surface of the water.
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Others: The oil has tension on the surface of the water, which is a dispersion action and spreads to the periphery.
Water treatment has oil splashes, oil spill dispersants can be used.
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Water in hot oil will fry, oil in water will not.
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Why does water meet hot oil? After knowing the principle, I am no longer afraid of being splashed with oil in the stir-fry.
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Because BAI water is a polar molecule, and oil DU belongs to the lipid class, it is a higher fatty acid glyceride, it dao
The polarity is very small, the root gyrus.
According to the similarity, it is soluble, so the oil and water are not miscible with each other.
Oil, the original meaning is also water, so it is called oil water. Posterior finger extract. The oil does not dissolve in water, which is caused by the difference in surface tension, the surface tension of oil is small, and the surface tension of water is large, so it is not compatible.
The surface tension of alcohol is close to that of water, so it can melt and can be blended in any proportion.
Additional Description: Oil. A general term for a hydrophobic substance that is liquid at room temperature. Composed of one or more hydrocarbons in liquid form (silicone oil is composed of silicons and oxycarbons in a large part), it is distinguished from hydrocarbons such as alcohols, ketones and ethers in that the components of the oil are not polarized.
The difference with fats is that the molecular length of the compounds that make up the oil and the connections between the molecules are comparatively smaller.
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Because water is a polar molecule, and oil belongs to the lipid class, which is a higher fatty acid glyceride, it is very polar and is soluble according to similarity, so oil and water are not miscible with each other.
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It can be blended, it is a matter of temperature. The 2010 IG Nobel Prize was awarded to a group of scientists who proved that water and oil can be combined.
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Oil and water cannot be combined due to their different densities.
We all know that water and oil in a bottle are not miscible, water is below, oil is on top.
The phenomenon that causes this water to be separated and not fused is that because water and oil are not miscible and the oil is less dense than water, the oil will be on top of the water.
Water is a polar molecule, while oil belongs to the lipid class, which is a higher fatty acid glyceride, and it is very polar and miscible according to similarity, so oil and water are not miscible with each other.
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You are amazing, you not only said the reason for the oil-water separation, but also explained it very clearly.
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Together. Are you mine? At home? At home? At home? At home? It's so delicious! It's so delicious! It's so delicious! There is no place in the house where there is no humanity.
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Think about brain teasers.
Banana water dissolves oil.
Banana oil, also known as thinner, is a colorless, transparent and volatile liquid, with a strong banana odor, slightly soluble in water, soluble in various organic solvents, flammable, mainly used as a solvent and thinner for painting. Banana water is also used as a solvent in the production of many chemical products, coatings, and adhesives.
You see, the English name for banana water is "rubber oil".
If you don't know the word oil, wake up and move bricks.
You really don't know? oil oil means.
Nail polish remover dissolves oil, and dish soap dissolves oil, if that's a serious question:
How many kinds of water are there, of course there is only one kind, which is H2O, and what kind of water is there?
Well, not rigorous.
Hydrogen and oxygen in water can indeed have isotopes, which are collectively referred to as heavy water, but they cannot be dissolved in the tank.
There is a problem with oil again, gasoline is oil, we drink from cooking oil, these oils cannot be mixed with water, and glycerin can be dissolved. The chemical name of glycerin is glycerol, gasoline is a variety of alkanes, and edible oil is a glyceride of fatty acids. There is no such thing as "oil" in chemistry.
What kind of oil are you talking about?
Well, not rigorous.
Oil is a general term for hydrophobic substances that are liquids at room temperature. That's the definition.
At the end of the day, your question is dedefined, as if asking "what dead people are alive".
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Remember that it was soapy water, and when soapy water was injected into oil and water, soapy water acted as an emulsifier. Emulsification refers to the mixing of two liquids that could not be mixed before, and turning one of the liquids into tiny particles and dispersing them in the other. The liquid that enters the painting is called emulsion, which is different from the solution.
An emulsifier is a substance that is added to simplify and stabilize the manufacturing process of an emulsion. The emulsifier disperses the oil in water and the water disperses in the oil. Soapy water disperses the oil in the water.
In addition to soap, albumin, lecithin, etc., can disperse the oil in water. On the contrary, there are substances that can make water soluble in oil, such as heavy metal soap, pine resin, etc. When soapy water meets oil, the tension of the oil becomes very small, and it cannot become large particles.
Therefore, the oil becomes the emulsion of the name of the port, that is, it is emulsified and dissolves together.
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(1) The first reason is that water is a polar molecule, while oil is a non-polar molecule, and two substances with different molecular structures will not fuse together.
(2) The second reason is that the density of the two substances is different, and the substances with low density will float on the substances with higher density.
Why don't you think water and oil are fused?
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According to the principle of similarity compatibility. Because the density of oil and water is different. The water molecule is a polar molecule, whereas the oil molecule is a non-polar molecule. So oil and water can't blend with each other.
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Because the density of water and oil is not the same, and water cannot react with it, neither is soluble when oil enters water or water enters oil.
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From a chemical point of view, the composition of oil is fat, and the composition of water is distilled water, and the two substances are not similar in nature and do not follow the law of similar dissolution, so they are not miscible with each other.
Yes, because I have served shredded potatoes, shredded mushrooms, and shredded meat.
No, it's because the original version of the manga is Moon Lotus (Xia Ente and Ren Yin), God knows what happened to those who adapted the animation, the people who did the animation were brain-dead, and changed the good Moon Lotus to Fahi!! We want to support originality!!
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