Table salt is a mixture, and salt is a compound, so why is table salt salt?

If the food test is a mixture, the broken word here refers to the table salt in life.

The main ingredient of table salt in life is sodium chloride, and it also contains some anti-caking agents to prevent caking, if it is iodized salt, potassium iodate or potassium iodide is added. Such table salt is composed of a variety of substances and, of course, belongs to the mixture.

Whereas, salts are a class of compounds composed of metal ions or ammonium ions and acid ions. If table salt belongs to salt, then the table salt mentioned here is the common name for sodium chloride. Sodium chloride is a compound composed of sodium ions and chloride ions. The concept of compound beauty.

Table salt is a term in our lives, while salt is a term in chemistry, that is, a compound formed by metal ions or ammonium ions and acid ions. The main ingredient of table salt is sodium chloride, but there are other substances in table salt, such as sodium iodate, so the main ingredient of table salt is sodium chloride, which belongs to salt, and the impurities in it are not considered here.

In chemistry, substances are classified, and the compounds in pure substances can include acids, alkalis, salts, oxides, etc., while sodium chloride belongs to the salt category, and table salt is the common name for sodium chloride.

Our usual edible salt is mixed with a certain amount of magnesium chloride, calcium chloride and other impurities are the mixture; Analytically pure table salt is the mixture.

There is a conceptual confusion here.

Table salt is a daily commodity, and the main ingredient is NaCl. Because it contains impurities and additives, it is a mixture.

Salt is a chemical compound". At this time, salt is only conceptual, focusing only on the salt itself, and does not consider whether it contains impurities in the real state.

In fact, everything in nature is a mixture, and there is no such thing as 100% purity, so there are no elements and compounds.

When it is said that "table salt belongs to salt", it is also in terms of its definition, the main component of table salt is NACL, so NaCl is usually called table salt, and at this time, it can be said that table salt belongs to salt.

Edible salt refers to sodium chloride obtained from seawater, underground rock (mineral) salt deposits, and natural brine (salt) water.

Processed table salt as the main ingredient, excluding low-sodium salt.

The main component of edible salt is sodium chloride (NaCl), which also contains a small amount of water and impurities and other elements such as iron, phosphorus and iodine. Because salt refers to a class of metal ions or ammonium ions.

NH4+) with acid ions.

or non-metal ion-bound compounds, table salt (NaCl) is bound by Na+ and Cl-, so it is salt Table salt is salt.

Salt generally refers to edible salt, also known as sodium chloride. Salt is mainly extracted from salt mines, and the salt that crystallizes into ore naturally is called "rock salt" or "rock salt". Salt can also evaporate from seawater and mineral-rich hot springs.

Salt is the most important mineral component of seawater, and its high content is called sea salt.

Globally, salt is produced annually at around 200 million tonnes, of which only 6 is used for human consumption (salt), with other uses including water treatment, road de-icing, and agricultural use.

It's a mixture. Compounds are different from elemental, only under the adjustment of pure substances there are compounds and elemental substances, and mixtures are distinguished from pure substances, only one substance is called pure, salt water contains NaCl and water, contains 2 substances, so it is a mixture.

Is crystalline hydrate pure? Crystalline hydrate (such as bile alum CuSO4·5H2O), from the chemical formula, there are CuSO4 and H2O, it seems to be a mixture, but CuSO4 and H2O are not simply mixed, but there is a strong interaction between the two, according to a certain mass ratio of the synthesis of CuSO4 + 5H2O = CuSO4·5H2O) into a new substance - bile alum, so CuSO4·5H2O is a pure substance.

Is the product of the combination of two elemental substances necessarily pure? If we can find a negative example to illustrate, then the conclusion is out. Like the combustion of carbon, the product may be CO2, it may be CO, or it may be a mixture of CO2 and CO.

The definition of salt refers to a class of compounds in which metal ions or ammonium ions are combined with acid ions or non-metallic ionized potatoes

Salts refer to a class of compounds in which metal ions or ammonium ions (NH4+) are combined with acid ions or non-metal ions. Such as sodium chloride, calcium nitrate, ferrous sulfate and ammonium acetate, calcium sulfate, copper chloride, sodium acetate, etc., generally speaking, salt is the product of metathesis reaction.

Salt reacts with salt to form new salt and new salt, salt and alkali react to form new salt and new alkali, salt and acid reaction to form new salt and new acid, such as sulfuric acid and sodium hydroxide to form sodium sulfate and water, sodium chloride and silver nitrate reaction to form silver chloride and sodium nitrate, etc. There are also other reactions that can produce salts, such as displacement reactions.

Salt is divided into single salt and combined salt, single salt is divided into normal salt, acid salt, basic salt, and combined salt is divided into double salt and complex salt. Among them, acid salts contain hydrogen ions in addition to metal ions and acid ions, and basic salts contain hydroxide ions in addition to metal ions and acid ions.

When the double salt is dissolved in water, it can generate a compound salt with the same ion as the original salt, and when the complex salt is dissolved in water, it can form a complex of complex ions that are different from the original salt.

Strong alkali weak salt is a salt that reacts with a strong base and a weak acid, which is alkaline when dissolved in water, such as sodium carbonate. The strong acid and weak alkali salt are the salts that react with strong acids and weak bases, and are acidic when dissolved in water, such as ferric chloride.

In chemistry, salt refers to a class of metal ions or compounds that combine with acid ions (NH+), such as calcium sulfate, copper chloride, sodium acetate, generally speaking, salt is the product of metathesis reaction, such as sulfuric acid and sodium hydroxide to produce sodium sulfate and water, and there are other reactions that can form salts, such as displacement reactions.

Salt is divided into single salt and combined salt, single salt is divided into normal salt, acid salt, basic salt, and combined salt is divided into double salt and complex salt. Among them, acid salts contain hydrogen ions in addition to metal ions and acid ions, and basic salts contain hydroxide ions in addition to metal ions and acid ions.

When the double salt is dissolved in water, it can generate a combined salt with the same ion as the original salt; When complex salts are dissolved in water, complex salt complexes of complex ions that are different from the original salts can be generated.

In general, insoluble salts are solid under standard conditions, but there are exceptions, such as molten salt and ionic liquids. Soluble salts and molten salts are electrically conductive and can therefore be used as electrolytes.

The cytoplasm, blood, urine and mineral water of the cells, contain many different salts.

Salts are compounds made up of metal ions and acid ions.

Salt has many uses in life, and adding salt to stir-frying will make the dish more delicious. Washing the nasal passages with salt water can eliminate allergens and bacteria from the sinuses. Gargling with salt water can prevent bacteria in the mouth, but you can't rinse your mouth with salt water too often.

Applying fine salt to the T-zone can control the secretion of oil in the T-zone. Salt has the effect of deep cleansing, astringent sebaceous glands, and washing hair with salt is the first choice for oily hair.

Salt is essential in people's lives, but consuming too much of it can be detrimental to health. High salt levels can increase blood pressure and plasma cholesterol. High concentrations of table salt can damage the gastric mucosa and induce gastric cancer.

High concentrations of table salt can inhibit the activity of respiratory tract cells, weakening their ability to resist diseases and making people susceptible to colds.

It is composed of metal ions (including orange ammonium ions) and acid ions.

Metal ions are ions of metal elements after a substance is dissolved in water. The remainder is simply the metal element in the substance of the molecule. The vast majority of metal ions are cationic, but group IVB-VIII metals can generate anions.

A compound is a pure substance (as distinguished from an elemental) consisting of two or more different elements. Compounds have certain properties, which are different from the elements or ions they contain, and also different from other compounds.

Edible salt refers to processed edible salt with sodium chloride as the main ingredient obtained from seawater, underground rock (mineral) salt sediments, and natural brine (salt) water, excluding low-sodium salt.

The main component of edible salt is sodium chloride (NaCl), which also contains small amounts of water and impurities, as well as other elements such as iron, phosphorus and iodine.

Sea salt refers to salt directly dried by seawater, which contains a variety of minerals that are harmful to the human body, but lacks the minerals necessary for the human body.

Edible salt is processed, and sea salt cannot be eaten directly.

Chemical salts refer to the products after the neutralization of acids and bases, and the common salts are divided into normal salts (strong acid and strong alkali salts, strong acid and weak alkali salts, strong alkali and weak salts), acid salts (such as Cuh2(CO3)2) and basic salts.

The product of complete neutralization of positive hydrochloric acid and alkali metals, acid radicals, "a certain chemical".

A certain acid "NaCl."

mg(no3)2

Acid hydrochloride is a product in which hydrogen ions are partially neutralized by metals, h,

Acid root "hydrogen so-and-so".

Acid formula a certain acid "naHCO3

nah2po4

Basic saline The product of the partial neutralization of hydroxide ions in alkali metals, oh, acids "A certain acid of a basic formula.

cu2(oh)2co3

Solubility of acids, alkalis, salts.

Such as: potassium, sodium, ammonium, nitrate four salts are fully soluble in water, hydrochloride in addition to silver, mercury, sulfate out barium, lead, alkali soluble potassium, sodium, barium, calcium slightly soluble.

Carbonate is mostly insoluble, magnesium is slightly soluble, potassium, sodium, ammonium.

1) According to the degree of reaction between acid and alkali, it can be divided into three categories: normal salt (product of complete neutralization of acid and alkali), acid salt (product partially neutralized by alkali), and basic salt (product of alkali neutralized by acid).

2) According to the cation ionized by salt, salt can be divided into sodium salt, ammonium salt, potassium salt, etc.

According to the anion ionized by salt, salt can be divided into sulfate, nitrate, carbonate, etc.

3) According to whether the acid anion ionized by salt contains oxygen: it can be divided into oxynate and anaerobic salt.

4) According to the solubility of salt, salt can be divided into soluble salt, slightly soluble salt, soluble salt, and insoluble salt.