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Of course, it is not true that salt and sugar turn snow, we know that the composition of snow is water, because water will become snowflakes when it drops below 0 degrees.
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This should not be true, we sometimes mix salt and sugar in our daily life, or inadvertently put it wrong, but it does not turn into snow, it should be added to some other substance.
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This one is fake. Between salt and sugar, one is organic and the other is inorganic. There is no chemical reaction taking place, and there is no physical change when they are mixed together, so it is impossible to turn into snow.
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Of course not, salt, sugar, and snow are three different substances, and the chemical formulas are completely different, and salt and sugar are mixed together, and no matter what conditions are used, they will not turn into snow.
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After all, the composition of snow is ice crystals formed by water condensed at low temperatures, so it has little to do with salt and sugar, but white sugar can be made into foods similar to snowflakes through a certain treatment, such as marshmallows.
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Of course, this is impossible, chemically speaking, salt is sodium chloride, sugar is a carbohydrate, these two things together cannot have a chemical reaction, put together is still white crystals, and snow is completely two substances, so what you said is wrong.
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It's not true that salt and sugar turn into snow. First of all, salt and sugar are solid, and they will not turn into blood under the circumstances, and salt and sugar will not melt at room temperature and will not change the physical structure.
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Because the ingredients in it are all different, strict sugar will only produce a crystal, which looks very similar to snow, but it is not real snow, so it is still different.
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Salt and sugar do not turn into snow, the main ingredient of snow is water, salt and sugar can not form snowflakes, salt and sugar are commonly used seasonings, usually easy to mix, and will not become snow.
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This is not true, there is no scientific basis for experiments, and it is impossible, that is, there is no principle, and it is impossible for blood and salt to become, snowflakes.
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Hello, I think sugar and salt turn into snow, this situation is not true. The ingredient of snow is water, and sugar and salt together do not make water.
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I don't think this should be true, because I have done corresponding experiments before, and this one is two unique, and he will not melt or dissolve, but the color is white.
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Fake. There is no scientific basis, and many people have already practiced it. It didn't work out.
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Salt and sugar do not turn into snow, the temperature in the clouds is too low, small water droplets form ice crystals, and when they fall to the ground and are still snowflakes, it is snowing.
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Yes, the composition of salt is potassium chloride, the composition of snow is water, potassium chloride is a chemical substance that is extremely soluble in water, and potassium chloride is dissolved in water to form potassium chloride aqueous solution, which contains potassium ions and chloride ions. The freezing point of sodium chloride deicing agent is -10 after being dissolved in water, and the freezing point of brine is lower than that of water.
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Salt with sugar, it is impossible to turn snow, research is salt, sugar is sugar added together, salty and sweet in taste. It's just that visually it feels a bit like snow.
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Because it's impossible, it's impossible for salt and sugar to be mixed together to become snow, and science can't reach this level later, which is all unscientific and unrealistic.
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No. The direct condensation of water vapor in the atmosphere or the direct solidification of water droplets is snow. It can also be said that the temperature in the clouds is too low, and the small water droplets form ice crystals, and when they fall to the ground and are still snowflakes, it is snowing. When ice melts, it traps heat, so the ground air temperature is cooler than when it snows.
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No, ice can only be formed at a certain temperature. Ice is a crystallization formed by the orderly arrangement of water molecules, which are joined together by hydrogen bonds to form a very "open" (low-density) rigid structure.
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It is impossible for Yan Jiatang to make a wish, but the salt is white, the sugar is also white, and it looks a little like white snow, but he will not have the temperature of snow, and it is not easy for snow to melt so quickly.
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Honestly, Yan Jiatangbian needs to be untested, but I think Yan Jia, he will not become a learner, this is a chemical reaction, how can it become a choice?
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Snow is the natural phenomenon of water condensing in the air and then falling, or falling snow; Because snow is a form of water in a solid state.
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There is no scientific basis. Because snow is precipitation composed of large amounts of white opaque ice crystals (snow crystals) and their polymers. Snow is the natural phenomenon of water condensing in the air and then falling, or falling snow;
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Salt can melt snow, the principle of melting snow salt:
1. The dissolution of salt reduces the freezing point of salty snow water, so it is difficult to form ice cubes after dissolving salt in snow water.
2. The reason is that after the snowmelt salt is dissolved in water, the ion concentration in the water increases, which makes the liquid vapor pressure of the water.
Drops, but the solid vapor pressure of the ice does not change, for the ice-water mixture is reached.
When the solid-liquid vapor pressure is equal when the equilibrium coexists, the ice melts, so sprinkling snowmelt salt can remove the ice and snow.
There are two main types of snowmelt:
One is an organic snow melting agent with potassium acetate as the main ingredient, although this type of snow melting agent has a good snow melting effect and no corrosion damage, but its ** is too high, and it is generally only suitable for airports and other places; The other type is chloride salt snow melting agents, including sodium chloride.
Calcium chloride, magnesium chloride.
Potassium chloride, commonly known as 'ice salt', has the advantage of being cheap, only 1 10 of organic snow melting agents, but it is very corrosive to large public infrastructure.
Although snow melting agents can be highly effective in snow melting, they should still be used with caution as most snow melting agents have some impact on the environment. For example, chloride-containing salts are more corrosive to metal and concrete, and can also cause "physiological drought", that is, "salinization", on roadside plants. If you are spraying industrial salt.
The nitrite contained therein.
When the snow melts, it seeps into the surface and pollutes the groundwater.
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Solubility. Table salt dissolves easily in water, which is a very common physical phenomenon.
Moisture absorption. The surface of salt is usually surrounded by a thin film of saturated salt solution, when the vapor pressure of this film solution is lower than the partial pressure of water vapor in the air, the salt adsorbs the moisture in the air and deliquescent; On the contrary, when it is higher than the partial pressure of water vapor in the air, it is dry. Of course, this is only a phenomenon that occurs when salt is exposed to the air, and salt that is sealed in a bag and isolated from the surrounding air will not deliquescent;
The freezing point is low. The freezing point I am talking about here does not actually refer to the dissolution point of pure table salt (NaCl) crystals, because it has to be heated to thousands of degrees Celsius to melt without the participation of water, and the freezing point here refers to the freezing point of the salt solution, and experiments have shown that if the salt solution contains 20% salt, its freezing point will be reduced to -16
There are many other properties of table salt, but to explain this problem, there are a few above are almost the same :) In addition, by the way, the composition of snow is mainly solid water - Xiaoice crystals, no matter how low the temperature, ice has the phenomenon of sublimation, so water vapor is diffused around the snow.
When we sprinkle salt on the snow, the salt uses its moisture-absorbing properties to absorb water vapor from the surface of the snow, thus increasing its own strength"tide"The film of the salt solution is becoming more and more obvious, and I think that the solution layer at this time is like a spark"Invasion"The surrounding snow layer was finally anti-guest and wiped out all the snow!
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It can be used as a cohesive core to do artificial snowfall.
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Reason: After adding salt compounds (mostly chlorides), the freezing point of water is reduced to less than below zero. As a result, the snow began to melt, which had the effect of clearing the snow on the road.
Working principle: After the ice and snow melt, it absorbs heat, so that the surrounding temperature drops, and the vapor pressure of the solution is less than the vapor pressure of the ice and snow, in order to achieve a new equilibrium, the ice and snow are continuously melted to form a solution, thereby reducing the freezing point of water, and under low temperature conditions, the equilibrium process of the above complex movement is carried out again and again.
Essence: Salt compounds, such as sodium chloride, are chemicals that are extremely soluble in water. When sodium chloride is dissolved in water, it produces an aqueous solution of sodium chloride, which contains sodium ions and chloride ions.
When it is to freeze, when chloride ions and sodium ions are present, chloride ions and sodium ions will destroy the crystalline structure of the water, so that the water cannot freeze. That is, sprinkling salt is good for the melting of snow.
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Although sprinkling salt on the snow can melt the snow, the harm is too great, so I would like to advise the sanitation workers to save some effort, let me give you an example.
Canada has a lot of snow in winter, and in order to melt the snow and ice on the road, the city of Toronto sprinkles tens of thousands of tons of salt on the streets of the city every winter. Environmental groups have long questioned the potential for such serious environmental damage, and now there is credible evidence that water quality tests have shown that water from stormwater pipes near Highway 401 and Toronto's Pearson International Airport is almost as salty as seawater.
Environmental experts pointed out in August last year that coarse salt, which is used to melt snow, is the main cause of the city's salinous water. Statistics show that up to 5 million tons of snow salt are used for road snow melting in Canada, with an average of 130,000 tons of salt sprinkled annually in Toronto. Due to the serious damage caused to the environment by coarse salt of snow melting, the environmental protection department is currently considering whether to include road salt in the list of "major **" environmental pollution, which is "the same crime" as polychlorinated biphenyls and benzene.
Environmental experts point out that the cost of salt, which is highly corrosive, to roads, bridges, vehicles and plants, is 15 times the cost of buying coarse salt.
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The melting point of the mixture is lower than that of the pure substances that make up the mixture.
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Salt melts snow. The freezing point of water is 0, above this temperature, the ice will turn into water, and below this temperature, the water will freeze. If the salt content of the aqueous solution exceeds 20%, then the freezing point of this solution will be reduced to -16.
Snow does not easily turn into water even in an environment where the temperature is higher than 0, but after sprinkling salt on the surface of the snow, as long as the snow melts a little, the salt can absorb the snow water and form a brine solution, because the condensation point of the brine solution is much lower than that of water, so it can not easily condense into ice at the same temperature. <
Salt melts snow. The freezing point of water is 0, above this temperature, the ice will turn into water, and below this temperature, the water will freeze. If the salt content of the aqueous solution exceeds 20%, then the freezing point of this solution will be reduced to -16.
Snow is not easy to turn into water even in an environment where the temperature of hail is higher than 0, but after sprinkling salt on the surface of the snow, as long as the snow melts a little, the salt can absorb the snow water and form a brine solution, because the condensation point of the brine solution is much lower than that of water, so it can not easily condense into ice at the same temperature.
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The principle that salt (i.e. sodium chloride) is able to melt snow is by using its freezing point effect.
When salt is sprinkled on snow-covered ground wax, the snow melts into water, because when salt dissolves in water, it forms ions, where chloride and sodium ions destroy the crystallinity of water and lower the freezing point of water. Therefore, the freezing point of the salt solution is lower than that of ordinary water, which can melt the snow above the freezing point into water, thus achieving the effect of removing the snow cover.
It is important to note that while salt can remove snow, it can have a negative impact on the environment. Salt can be coarsely slick to form chloride ions, which can cause damage to water ecosystems, and sodium ions, which can affect the quality of drinking water. In addition, too much salt can have a negative impact on plant growth, so it is important to use it wisely and be mindful of the environmental impact when using a quick fix for salinizing snow.
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The reason why salt melts snow is because it lowers the freezing point of water, so that the water remains liquid in sub-zero temperatures. This phenomenon is known as "freezing point drop". When salt is mixed with ice, the salt dissolves on the ice to form a brine solution, which has a lower freezing point than pure water, so it can remain liquid at temperatures below freezing without forming solids.
In addition, salt also absorbs heat from the surrounding environment, which also helps to accelerate the melting of snow. Therefore, when clearing Yuma snow, salt can be used to speed up the melting of snow and clear the snow. However, it should be noted that excessive use of salt can cause damage to the environment and road facilities, so it needs to be controlled in the right amount when using salt.
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Salinized snow is actually based on the principle that the freezing point of chloride salt solution is lower than that of water. Taking sodium chloride as an example, when sodium chloride is sprinkled on the snow, the freezing point of the solution formed will drop, and the snow will melt the land mold.
Snow is actually solid water in the form of snowflakes that fall to the ground in mixed clouds. The snow has a very large shape, but most of it is hexagonal. There are two main conditions for the formation of snow, namely, the atmosphere needs to contain colder ice crystal nuclei, sufficient water vapor, and the temperature must be below freezing.
Therefore, every winter when the snow is clear, you will find a car pouring salt on the road so that the snow on the road can melt as soon as possible.
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