Is the ice floating on the surface of the sea the same composition as the seawater? Why

It's different. This is because the ice floating on the surface of the sea comes from glaciers. How are glaciers formed?

When the sea is irradiated by the sun, it forms water vapor, which turns into snow at the poles and descends, and the thick snow forms glaciers under the action of self-squeezing and melting water freezing. After the evaporation of seawater, it no longer contains salts such as NaCl and MgCl2, and glaciers are freshwater products.

The ice that floats on the surface of the sea comes from glaciers and is a freshwater product, which is different from the composition of seawater (containing salts such as sodium chloride).

In contrast, suspended ice on the surface of the sea generally comes from glaciers shedding and contains very few impurities, while there are a large number of other substances such as NaCl in the seawater.

Of course, most of the fresh water on Earth is distributed in solid form at the two poles of the earth, and ice can almost be considered pure, while seawater is a real mixture, and there are a lot of NaCl, MaCl2, and so on, so it's different.

Unlike the ice that floats on the surface of the sea is freshwater, the composition of the sea water is complex.

There are a lot of soluble substances in seawater, and there are a lot of NaCl, MgCl2 and other substances in it, and even contain ** ** only a very small amount

However, the ice in the sea is pure because there are no impurities mixed in when it freezes, so the ice in the Arctic and Antarctic is not only a regulating effect on the climate, but also the best freshwater resource, but we have difficulty in using it

The ice is freshwater, because the salt is precipitated out of the water when it froze.

Different, ice contains less salt of all kinds.

Salt is precipitated from water when it freezes, so the concentration of salt in ice is much lower than in seawater.

Pure? It does not exist under natural conditions.

The white floats in the ice are not bacteria or anything else, but are caused by the dissolution of air in the water.

When freezing with an ice grid, the water usually solidifies from the outside to the inside during the freezing process, and when the outside is already frozen, the inside is still covered with some air and water. When the temperature drops, the air will become bubbles and escape outward, and if the outside has been frozen into ice, it will not be able to escape, resulting in a large number of bubbles and white fog when the ice cubes are condensed inside, which is a white float.

Of course, this kind of floating object is harmless to the human body, but this ice cube is easier to melt, and if you want to use it for bartending or other operations, you can't use this ice cube.

1. Use distilled water or purified water, boil the water, put it at room temperature, pour it into the ice grid, the purpose of boiling the water is to let the rising bubbles generated when the water boils take away part of the air, and you can burn it twice without being too troublesome.

3. Don't use a grid of ice grids, but use a large crisper box or a whole ice grid to freeze a large piece of ice, use ice chisels and ice picks to cut off the parts with white mist and bubbles, and the rest is pure ice.

Hello landlord, I learned after the inquiry that this kind of flocculent is the water itself comes with things, but the silica gel has the ability to adsorb so it will be all sucked to the surface in contact with the water, this floc removal is also simple, you first put these ice cubes in other cups through the water, the surface of the things will come down, and then fish out and put it in their own cups There will be no floats, and the test is effective.

Probably not . . . Because I've been drinking like this for a long time, there's nothing wrong with it.

Sea ice is known as the five major marine disasters along with tsunamis, storm surges, hazard waves and red tides, and sea ice is known as the "white killer". Shandong Province has the largest continuous cold weather in more than 40 years, and there are different degrees of freezing in various sea areas, especially the ultra-low temperature in the Bohai Sea has led to a wide range of freezing, and the ice layer continues to thicken, with an average thickness of 25 cm in most areas, and ice mounds have been formed in individual estuary areas, with the height of ice mounds reaching meters.

In Liaodong Bay, Bohai Bay, Laizhou Bay and the northern Yellow Sea, the sea ice area and sea ice density increased. During the sea ice disaster, countless merchant ships and fishing boats could be seen on the coast of the Bohai Sea, which were frozen in the sea, and the pieces were like red cliffs, which was spectacular.

The main form of sea ice destructive power is the thrust of sea ice under the action of wind and currents. Some offshore structures fall into the sea when they freeze, due to the huge thrust of the sea ice. The risk of melting sea ice is even greater, and large amounts of ice floes can damage operating ships and offshore structures, and pose a great threat to the safe navigation of ships.

The magnitude of the impact force of huge ice blocks and icebergs floating in the ocean is related to the size and flow rate of the ice blocks. The oil platform is supported by 15 manganese-steel cylindrical column piles with a diameter of 15 meters, which are unusually strong and 28 meters deep into the ocean floor, but were destroyed and knocked over by powerful drift ice. The drift ice also broke all the steel cables on the support of the 500-ton "Haiyi Jing" platform, causing a major marine accident.

This is the reason why the water in the cup can often burst when it freezes. The same is true for seawater, which is generally bounded by -2, and a drop in temperature causes the volume of sea ice to expand. When the sea temperature drops, the 1,000-meter-long sea ice can expand by meters.

This staggering force of sea ice is particularly staggering, crushing and deforming frozen hulls, cracking and flooding the holds, and even damaging military installations in ports, docks and at sea. In addition, the lower the temperature, the greater the compressive strength of sea ice, which in turn is greater than that of old ice.

The ice floes at sea will float back and forth with the push of the sea water and wind, forming a huge impact force, if you accidentally touch the ships or buildings traveling at sea, it will cause a fatal blow to it, and if the ice floes melt, a large amount of ice floes will float on the sea surface, which will have a greater impact on the ships and buildings operating on the sea surface.

Ice floes produce thrust under the action of the winds and currents at sea, so that the ice floes can be very destructive.

There are a lot of ice floes under the sea, and many people don't see that the ice floes will hit it directly, and these ice floes are very hard and will directly smash the ship.

Your questions are as follows:

This is because the volume of water expelled by ice is equal to the buoyancy it experienties, and the buoyancy experienced by ice is equal to the weight of the ice, which is also equal to the weight of the water it dissolves into. Therefore, the liquid level does not change.

The mass of ice remains unchanged after it becomes water, and the density of ice is less than that of water, so the volume of ice of the same mass is greater than the volume of water, and the ice floating in the water has a part above the surface of the water, and after this part of the ice melts, the volume of the ice that is added to the ice in the water shrinks. So the water level does not fall, it remains the same.

To paraphrase our physics teacher, the melted ice cube is still seen as a whole suspended in the water, F floats = F ice floes, F floats = density * volume * g, the density is equal to g, the volume of the discharge is equal, the water discharged before and after the so melts is the same, and the water surface of the so does not change! (Actually, I think it's up!!) Got it, dear

Ice is floating on the water, that is, it is partly in the water and partly on the water. The water surface does not change precisely because the part of the ice that is exposed to the surface of the water is at work.

The water surface should be unchanged, which can be viewed from one point of view alone, for example, from the point of view of water, the volume is the same before and after the ice melts and the water is converted, and there is no change, so the water surface should be unchanged.

The density of ice is times that of water, so it is dislodged in water by a volume that is times its own volume. When it melts into water, the volume of water is also twice that of ice, so it remains unchanged.

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If 4 is considered to be 1 and air 7 has no weight, then o water 8 will not change 1 if it does not d. If 6 is considered to be 1 air 2 has weight, then the 7 side of the water will drop h. Of course, the amplitude of the v drop under this l is very small p, which can be ignored by 8 and 6 by z.

If the density of ice is less than that of water, the volume is smaller than that of water, and the water surface falls.

Are you done with the question? How much ice is floating? Full immersion?

The liquid level hardly changes (the mass of the ice is equal to the mass of the water that is discharged).

Because the volume of water formed by ice is equal to the volume of ice immersed in water, the surface of the water does not change.