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Yes, there is also NACL in it, so there is a NA element.
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There is sodium in the sea, the sea is salty, and the main component is sodium chloride, so there is sodium in the sea, but it is combined with sodium ions and chloride ions to form a stable substance, rather than sodium in a free state. In fact, sodium is found in many objects.
Hope it helps!
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Yes, seawater is salty, that is, it contains salty salt, that is, it contains a large amount of NaCl, of which sodium is a metal, therefore, the most abundant metal element in the ocean is sodium Na, of course, metal sodium is in the form of a compound in seawater.
Sodium is extremely abundant in seawater, but its chemical behavior is very simple, it is almost entirely in the form of Na+ ions.
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There is sodium, and the water in the sea has a salty taste, which contains sodium.
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The reason why seawater is salty is because it contains sodium chloride, which is NaCl, so it contains sodium element.
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Yes. Seawater is salty because of the large amount of salt NaCl, and sodium is present in the form of compounds.
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Is kelp sodium in it?
Doesn't seem to be. Kelp is a nutritious edible brown algae that contains more than 60 nutrients. It has been determined that every 100g contains 8g of protein, fat, carotene, vb, vb
6mg of niacin, calcium, iron, phosphorus, and rich in alginic acid, cellulose, mannitol and a variety of trace elements.
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There are Na ions in seawater.
Seawater is a very complex multi-component aqueous solution. All elements in seawater exist in certain physical and chemical forms. The presence of copper in seawater is more complex, and most of it is in the form of organic compounds.
Among the free ions, only a small fraction exists in the form of divalent positive ions, and most of them occur as negative ion complexes. So free copper ions account for only a small fraction of all dissolved copper. Sodium is extremely abundant in seawater, but its chemical behavior is very simple, and it is almost entirely in the form of Na+ ions.
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Seawater contains calcium and silicon. The bones of all living things in the ocean are made up of calcium and silicon, so these two elements are necessary for the survival of marine life. Nitrogen and phosphorus in seawater are two very important elements that are involved in the growth of marine plants.
The abundance of these elements in seawater is often affected by plant activity, and when the levels of these two elements are low, it limits the normal growth of plants, so these elements are important for living things. The amount of trace elements in seawater is very small, and the total reserves of marine water are very large, so the total amount of these elements is also very considerable. Seawater also contains copper.
According to statistics, each kilogram of seawater contains milligrams of copper. Marine creatures like lobsters also contain an average of 5 milligrams of copper per 100 grams of lobster.
Since the 80s of the 20th century, about 39.32 million cubic meters of seabed hydrothermal deposits have been discovered, which is another *** of gold and silver. Therefore, it is also known as the "gold and silver vault of the sea". In the ocean, the amount of gold and silver is very small, with an average of milligrams to milligrams of gold per cubic meter of seawater, but the amount of gold and silver is very considerable when calculated by the water in the entire ocean.
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The concentration is, that is, 1,000,000 grams of seawater contains grams of sodium ions, and because the density of seawater is 1,000,000 grams of seawater, the volume of 1,000,000 grams of seawater is 1,000,000 grams of the amount of sodium ions.
Molar concentration of sodium ions.
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The water in the world contains a variety of salts due to thousands of years of dissolution, among which sodium ions will hardly precipitate, and the content is higher in the earth's crust, so the content is particularly large in seawater, and the rivers and freshwater lakes on land are flowing water, and there is rainfall to replenish the salt in the diluted water, so the sodium ion content in freshwater is very small.
A similar situation exists in freshwater lakes and saltwater lakes, where freshwater lakes are constantly replenished with water, so they contain less salt, while saltwater lakes have no water replenishment, only continuous evaporation, and the water is basically salty.
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This one is simple.
Just look at sodium chloride.
The mass fraction of chlorine in sodium chloride is: (23) *100 =
The mass fraction of sodium in sodium chloride is: 23 (23) *100 =
Therefore, sodium chloride contains more chlorine than sodium.
In addition, although there are chlorides such as MgCl2 and CaCl2, sodium also has its own other normal salts, such as Na2CO3, Na2SO4, etc.
However, because chlorine in seawater is mainly found in sodium chloride (the content of sodium chloride accounts for about 3% of seawater).
I don't understand hi
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Although Na-Cl is a monochloride, the ratio of sodium to chlorine after dissociation in seawater is 1:1, but the salt in seawater is not only sodium chloride, but also many other chlorides and other compounds, such as potassium chloride, magnesium chloride, calcium chloride. Although many chlorides are not soluble, they will always dissolve some of them, and in that case, there will be more chlorine than sodium in seawater!
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Because in addition to the main component NaCl, there are also chlorides such as MgCl2 and CaCl2 that belong to the salt group, and the content of chlorine is naturally more than sodium.
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This one is simple.
Just look at sodium chloride.
Sodium chloride. Mass fraction of chlorine. For: (
Sodium chloride. Mass fraction of sodium. For: 23
Therefore, sodium chloride contains more chlorine than sodium.
In addition, although there are chlorides such as MgCl2 and CaCl2, sodium also has its own other positive salts, such as Na2CO3, Na2SO4, etc., but because chlorine in seawater mainly exists in sodium chloride (
The content of sodium chloride.
Occupy the seawater. about 3%)
I don't understand hi
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