Q:Indicating the organic compounds and inorganic salts in the boiling point, melting point and solubility of what is the difference

Organic compounds are mainly covalently bonded, the mutual attraction between molecules is very weak, so its melting point, low boiling point, generally insoluble in water and soluble in organic solvents. Inorganic salts with ionic bonding, positive and negative ions electrostatic attraction is very strong, so the melting point, boiling point is very high, usually insoluble in organic solvents and soluble in water.

Q:Whether the metal oxides are alkaline oxides

CrO3, Mn2O7 are metal oxides, they are acidic oxides

Q:How to go to the base of the teapot

Many people like to drink tea, but the cup of tea is difficult to remove the tea, tea wall grows a layer of tea, containing cadmium, lead, iron, arsenic, mercury and other metal substances. They are in the tea into the body, and food in the protein, fat and vitamins and other nutritional compounds, resulting in insoluble precipitation, hinder the absorption of nutrients. At the same time, these oxides into the body can cause nerve, digestion, urinary hematopoietic system diseases and dysfunction, especially arsenic, cadmium can cause cancer, causing fetal malformations, health hazards. Therefore, tea drinking habits, should always be timely cleaning tea inside the tea. In order to make you no longer a big headache for the matter, the following describes several ways in addition to tea: (1) remove the metal tea on the tea off, the use of metal tea, Become black, such as with medium-sized cleaning agent can not wash, can be soaked with vinegar, or soaked with bleach can easily peel. (2) to remove the cup or teapot on the tea, cups, teapots with a long time, it will be a lot of tea, with a sponge dipped in salt friction, can be easily removed. (3) in addition to small pieces of tea, can be soaked in bleach or clean powder solution, and place a night, you can remove the tea scale. (4) can be used toothpaste or broken eggshell scrub, and then rinse with water can be.

Q:The application of various inorganic salts in the human body?

Silicon in the water was partial silicic acid form absorbed by the body, mainly distributed in human skin and connective tissue, in the process of skeleton has a physiological role in promoting the development of bone development. Silicon is also involved in the metabolism of polysaccharides, is to form some glucose The main component of the aminopolysaccharide carboxylic acid.

Q:What is the inorganic salt, is not the organic salt and is not the inorganic salt

There is no concept of organic salt inorganic salt inorganic salts in the class of chanting

Q:Magnesium can constitute chlorophyll, which reflects the nature of inorganic salts

(2) to participate in and maintain the metabolic activity of the organism.

Q:What is alkali?

What is the alkali is the ionic compound, the ionization of the anion is hydroxide (OH-), in fact, the oxygen ion acid root (which can compare sulfur and sulfur), and the anion contains only hydroxide. (Such as LiOH, NaOH, NH3 · H2O) soluble in water, alkaline earth metal ions formed in the periodic table from top to bottom gradually soluble [Be (OH) 2, the alkali metal ions or alkali ions, Mg (OH) 2 is insoluble, Ca (OH) 2, Sr (OH) 2 is slightly soluble, and Ba (OH) 2, Ra (OH) 2 is easily soluble, and other bases are in addition to TlOH and Tl (OH) Is difficult to dissolve alkali and acid metathesis reaction is also known as neutralization reaction, that is, H + + OH- == H2O

Q:Thank you in detail

The so-called food acidity, is that the inorganic salts in food are acidic or alkaline. General metal elements such as sodium, calcium, magnesium, etc., in the body of its oxide is alkaline, with such elements more food is alkaline food, such as soybeans, tofu, spinach, lettuce, radish, potatoes, lotus root, Kelp, watermelon, banana, pear, apple, milk and so on. Some foods contain more non-metallic elements, such as phosphorus, sulfur, chlorine, etc., in the human body after oxidation, with anionic acid, is acidic food. Such as pork, beef, chicken, duck, eggs, carp, oysters, shrimp, and flour, rice, peanuts, barley, beer and so on. Therefore, we must pay attention to acid, alkali food with a reasonable, otherwise, eating too much acidic foods can cause blood acidic. In order to neutralize these acidic substances, but also the consumption of a large number of calcium and magnesium and other basic elements, and cause a series of symptoms such as calcium deficiency, such as skin diseases, neuropathy, especially in holidays, if more meat, more Should pay attention to with some fresh vegetables, fruits and other alkaline food, so as to avoid the body acid-base balance disorders. Measured, weak alkaline foods are: tofu, peas, soybeans, green beans, rape, celery, sweet potatoes, lotus root, onions, eggplant, pumpkin, cucumber, mushrooms, radish, milk and so on. The basic foods are: spinach, cabbage, cabbage, lettuce, carrots, bamboo shoots, potatoes, kelp, citrus, watermelon, grapes, bananas, strawberries, millet, persimmon, coffee, wine and so on. There are some food because of eating up the acid, people mistakenly put them as acidic food, such as mountain planting, tomatoes, vinegar, etc., in fact, these things are typical of alkaline food. As for the acidic food or weak acidic food, in addition to all kinds of livestock and poultry meat, the common acidic foods are egg yolks, fish seeds, ah, white rice, noodles, bread, steamed fish, octopus

Q:What is inorganic salt

Inorganic salts are mineral nutrients that are present in the body and in food, and are composed of organic matter and inorganic matter. The body has been found to have more than 20 kinds of essential inorganic salts, about 4 to 5% of body weight. (> 5g) is calcium, phosphorus, potassium, sodium, chlorine, magnesium, sulfur seven kinds of daily dietary requirements are more than 100mg, known as constant elements. In addition, the contents of iron, iodine, copper, zinc, manganese, cobalt, molybdenum, and selenium were studied by means of atomic absorption spectroscopy, neutron activation and plasma emission spectroscopy. , Chromium, nickel, silicon, fluorine, vanadium and other elements is also essential to the human body, daily dietary requirements for the amount of μg ~ mg called trace elements.

Q:Which foods contain calcium-containing inorganic salts

Calcium and inorganic salts are two concepts, bother you to go back and turn the chemical book and then ask, inorganic salt can eat