What are the similarities and differences between sugar and salt

To add: the similarities: both are white or colorless crystals, the particle size is similar, the differences: the crystals of sugar are viscous, and the crystals of salt are dry and loose. The specific gravity is also different.

Sugar is a macromolecular organic matter, hydrophilic is stronger than salt, soluble in water, salt is inorganic, dissolved in water, the formation is an ionic state of aqueous solution, ions are easy to conduct, sugar dissolved in water, or molecular state, not easy to conduct, sugar in the bacterial invasion after decomposition and send out a strange smell. Salt is not organic, and it cannot be invaded by bacteria without pollution, so it is tasteless.

Sugar is made up of molecules, and the molecules themselves are electrically neutral, so they do not conduct electricity when dissolved in water.

Salt is made up of ionizable ions, and the ions are charged, so when the electricity is applied, the positive ions will run to the negative electrode, and the negative ions will run to the positive electrode, so that there is a directional moving charge in the circuit, which produces an electric current.

Sugar and salt are not volatile, so we can't smell them. But they are all water-soluble, so we can taste them because they dissolve in our saliva in the process of tasting.

When the sugar is heated, it will carbonize, and in short, it will be burned, and it will turn into black carbon like rice burnt. When the salt is heated to 801, it will melt into a liquid, and its ions will also be ionized, and if the electricity is applied, it will be found that the molten salt can also conduct electricity. If direct current is applied, the salt is electrolyzed into chlorine and sodium metal.

Sugar: organic matter, composed of several elements of carbon, hydrogen and oxygen, soluble in water but not ionized, in the case of oxygen participation, after high temperature heating will caramelize reaction, the color substance in the cola we often drink is basically the sugar produced by caramelization reaction.

Salt: inorganic, composed of metal ions and negatively charged ions or ion clusters, soluble in water but ionized, I don't know what will happen when heated at high temperatures, it may lose its crystallization and water will become powder, it may melt, it may harden, or it may occur more violently**!!

What is usually referred to as salt is table salt, which is sodium chloride. In fact, salt refers to a compound composed of a combination of metal ions and acid ions. (These two ions are combined by electrostatic force).

When table salt is dissolved in water, it ionizes into sodium hydrate ions and chloride hydrate ions, and when an external power supply is applied, these two ions can act as electron carriers, so the aqueous solution of sodium chloride can conduct electricity.

Sugar carbonization can have odor, heating or concentrating sulfuric acid can be used to carbonize sugar.

The similarity: they are both condiments.

Difference: They don't taste the same.

I'm telling you. After the sugar is burned over the fire.

He will have a mushy taste

Awesome, right?

You can eat it all. If you eat too much, your throat will hurt. can be seasoned. It's about the same length.

The density of salt is high.

Salts refer to a class of compounds in which metal ions or ammonium ions (NH+) are combined with acid ions or non-metal ions. Such as sodium chloride.

Calcium nitrate, ferrous sulfate and ammonium acetate, etc., such as calcium sulfate, copper chloride, sodium acetate, generally speaking, salt is the product of metathesis reaction, salt and salt reaction to form new salt and new salt, salt and alkali reaction 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.

Sodium sulfate and water are generated, and sodium chloride reacts with silver nitrate to form silver chloride and sodium nitrate. There are also other reactions that can produce salts, such as displacement reactions. The solution of soluble salts is conductive because there are ions that swim freely in the solution, so they can be used as electrolytes.

Hydrochloric acid is not only an important product of salt chemical industry, but also an important raw material for the production of silicon materials. It is a type of crystal.

Concentrated sugar water is denser than heavy sugar water in concentrated brine, because the molecular weight in empty sugar water is much heavier than that of salt molecules, and the concentration of saline is about room temperature + standard atmospheric pressure), normal saline is room temperature + standard atmospheric pressure at room temperature) The main component of table salt, ionic compounds. Colorless and transparent cubic crystal with a melting point of 801, a boiling point of 1413, and a relative density of glucose.

Density The salt density is high.

Under normal circumstances, the density of salt is g cm (grams of cubic centimeters), and the density of sugar pants is g cm (grams of cubic centimeters), so the density of salt is much higher than that of sugar.

Sugar water is denser because the weight of molecules in sugar water is much heavier than that of salt molecules.

The concentration of saturated saline is about room temperature + standard atmospheric pressure), and normal saline is at room temperature + standard atmospheric disturbance pressure).

Naturally, the density of salt is high.

A quiet, general situation.

The density of salt is g cm (grams of cubic centimeters).

The density of sugar acacia per mu is g cm (grams of cubic centimeters), so the density of salt is much greater than that of sugar.

There are many conditions, but in everyday life, salt is denser in terms of solid salt and solid sugar.

There are many conditions, but in everyday life, solid salt and solid sugar have a higher salt density.

There are many conditions, but in everyday life, salt is denser in terms of solid salts and solid sugars.

Because the relative atomic mass of glucose is greater than that of salt.

1) The input index is mainly considered from the three aspects of manpower, material resources and financial resources, and the number of employees in transportation, warehousing and postal services is selected to represent the number of employees in the logistics industry (10,000 people); In terms of material resources, the measurement of logistics network mileage (km) should theoretically be the weighted sum of the five modes of transportation according to the realized value increase of Tongying, but limited to the availability and validity of data, this paper only considers the three main modes of logistics network mileage: railway, inland waterway and highway, and measures the development of logistics network with the sum of their simple sum. In terms of financial resources, the investment in fixed assets in transportation, warehousing and postal services in various regions was selected to represent the investment in fixed assets in the logistics industry (100 million yuan).

2) The output index is mainly evaluated from the two aspects of quantity and quality hail excavation volume, and in terms of quantity, we select the freight volume (10,000 tons) of each mode of transportation to express; In terms of quality, we selected the output value data of transportation, warehousing and post offices in various provinces, and included the output value of the telecommunications industry in the statistics, while the output value of China's transportation, warehousing and postal industry only has statistical data at the national level, so this paper adopts the output value of transportation, warehousing and post and telecommunications industry in all provinces of the country instead of the output value of the logistics industry (100 million yuan).

1. The taste of the shirt is different.

Table salt: salty.

White sugar: Sweet.

2. The solubility is different.

Take cold water and dissolve it in two cups with the same excess of the analyte, and the less precipitated is table salt. Because the solubility of table salt is greater than that of white sugar, and the solubility basically does not change with temperature, and white sugar is only easily soluble in hot water.

3. Whether the aqueous solution conducts electricity.

Table salt: an aqueous solution conducts electricity.

White sugar: The aqueous solution does not conduct electricity (to dissolve the sugar in purer water).

4. The temperature of heating and melting decomposition is different.

Salt: It does not decompose after heating, and will only melt when the temperature is very high.

White sugar: After heating, it will decompose.

1. Physical characteristics.

Density: The density of sugar and salt is different, so you can go to the other.

Solubility: The solubility of sugar and salt is different, and the temperature of water affects the dissolution rate of sugar, but has almost no effect on the dissolution rate of salt.

Osmotic pressure: the molecule of white sugar is large, the molecule of salt is small, and the number of molecules of salt is much larger than that of white sugar under the same quality conditions. Since the osmotic pressure produced by the substance is only related to the number of molecules, not the chemical properties, the osmotic pressure produced by table salt is much higher than that of white sugar.

2. Chemical characteristics.

Taste bud sensation: The molecules of sugar and salt act on the taste buds, resulting in different tastes, white sugar is the feeling of sweetness, and salt is the feeling of saltiness, which is caused by the chemical action of the special sites of the molecule.

Degree of ionization: Both are completely soluble in water, but there is a difference in the degree of ionization.

Chemical reaction: white sugar has a hydroxyl group, which can be oxidized, acidified, coamelized, alkalized, and the dilute solution can be decomposed and corrupted by bacteria; Table salt does not have these chemical reactions, let alone spoilage, and salt can be electrolyzed to form chlorine and sodium hydroxide.

Sugar is an essential nutrient for the human body, which is immediately converted into carbohydrates after being absorbed by the body for energy for the body. So, why was it taken by Sweet Letter?

Sugar is sweet and salt is salty because substances have their own properties. The reason why sugar is sweet is determined by the characteristics of sugar. If I ask you:

Why is sugar sweet? All you can say is, "Because it's sugar."

However, the feeling of sweetness can only be produced by putting sugar on the tongue. However, even putting sugar on the tongue can make it not feel sweet. Please put a grain of rock sugar on your tongue** to try, and a grain of salt can also be used.

What do you think? I don't feel sweet or salty. This is because the ** of the tongue cannot distinguish between sweet and sour.

The tongue also has structural or physiological properties. There is a discipline called chemistry, which is the study of the properties of objects and their changes. So, how do you tell the difference between sugar and salt based on their properties other than taste?

There are many ways to do this.

Health hazards of sugar.

Cane sugar should not be consumed in large quantities.

Sucrose is the carbohydrate with the highest calorific value, and excessive intake can cause diseases such as obesity, arteriosclerosis, high blood pressure, diabetes, and dental caries.

It should not be consumed in large quantities on an empty stomach.

British scientists have found that eating a large amount of sugar on an empty stomach will cause the blood sugar in the blood to rise suddenly, destroy the body's acid-base balance and the balance of various beneficial microorganisms in the body, and is not conducive to human health.

Excessive consumption can affect children's development.

Eating too much sugar can affect the consumption of fat in the body, resulting in fat accumulation; Eating too much sugar can also affect calcium metabolism. Some scholars believe that if the amount of sugar consumed reaches 16-18% of the total food intake, it can cause calcium metabolism disorders in the body and hinder calcification in the body. According to a survey in Japan, there has been an increase in the rate of fractures in children, who believe that too much sugar is an important cause of fractures.

Eating too much sugar can make people feel full, have a poor appetite, affect food intake, and then lead to a deficiency of multiple nutrients. Children's long-term high-sugar diet directly affects the growth and development of children's bones, leading to rickets and so on. If children eat more sugar and do not pay attention to oral hygiene, it provides good conditions for the growth and reproduction of bacteria in the mouth, which can easily cause tooth decay and mouth ulcers.

In order to avoid diseases such as dental caries, myopia, hypochondrosis, and digestive tract, the World Health Organization calls on parents not to let their children eat too many sweets.

Sugar is one of the important substances that human beings rely on for survival.

Sugar is one of the three main nutrients in the human body and is the main source of heat energy in the human body. The heat energy supplied by sugar to the human body accounts for about 60 70% of the total heat energy required by the human body.

Sugar is the most abundant organic compound in nature. Sugars are mainly found in grains, cereals, potatoes, beans, rice and flour products, vegetables and fruits in the form of various starches, sugars and cellulose. It accounts for about 80% of its dry matter in plants and very little sugar in animal foods, accounting for about 2% of its dry matter.

Sugar is sweet.

Salt is salty and dry.

The taste is different.

Salt is an inorganic substance that has been in the dust hole.

Sugar is a sparrow-walking thing.

Sugar and salt are put together and can be used without obvious chemical effects.

Sugar and salt are used to flavor stir-fried dishes, including monosodium glutamate and chicken bouillon. Salt is the basic seasoning of cooking and the basis of taste. In other words, if you don't add salt and just put other seasonings, it will look tasteless.

In addition to sweetening, sugar also has the effect of increasing freshness, so sugar and salt are okay.

Sugar is energy, salt maintains electrolyte balance, and the two are not mutually reinforcing or mutually reinforcing, and many of the injections used in hospitals are aqueous solutions of glucose and sodium chloride, which is sugar and salt water to put it bluntly. Depending on the purpose of your use, it is also related to the amount of sugar and salt added, adding too much may cause thirst or dehydration.

Sugar is sweet, salt is salty, and that's because substances have their own properties, and the reason why sugar is sweet is because of the characteristics of sugar. If you were asked, "Why is sugar sweet?" "All you can say is

Because it's sugar "However, the feeling of sweetness can only be produced by putting sugar on the tongue However, even if you put sugar on the tongue, it can make it not feel sweet Please put a grain of rock sugar on the tongue** Try it, put a grain of salt on it How about it? I don't feel sweet or salty, right? This is because the tongue can't tell the difference between sweet and sour, and the tongue also has structural or physiological properties, and there is a discipline called chemistry, which is the study of the properties of objects and their changes, so how do you distinguish sugar and salt according to their properties other than taste? In fact, there are many ways to boil the sugar water dry, why it will not leave sugar Table salt is a substance that is easy to crystallize, and if it is not heated to more than 800, the salt will not melt However, sugar is different from salt, and the sugar will decompose more than 50 during the boiling process, and the solubility of the sugar will change dramatically It can be dissolved in any ratio in 100 water Heat the sugar to 160, even if it is solid sugar, it can melt; If heated to 190 200, the sugar will decompose into bitter caramel, and the color will also turn yellow, and if it is heated further, the sugar will also produce carbon monoxide, carbonic acid, acetaldehyde, acetic acid and acetone, and emit a shiny blue-white flame; In the end, only non-flammable carbon (sugar carbon) is left to dry the water to make sugar crystals, and the process of this work is very complicated, and in this regard, sugar production is very different from salt production