The substance category of magnesium nitrate is:

That's right, it's +2 valence, which is mg(no3)2

This is definitely a careless mistake by the person who compiled the book, don't worry about it, I have studied chemistry for so many years and it is the first time I have seen magnesium nitrate.

What about mgno3! Boldly write mg(no3)2 and believe in yourself!

The chemical formula of magnesium nitrate is mg(no3)2.

Magnesium nitrate, which has the chemical pin closed formula of mg(NO3)2, is an inorganic compound composed of magnesium ions and nitrate ions. In the chemical formula, mg stands for the element magnesium, NO3 for nitrate ions, and 2 for the number of nitrate ions, so the magnesium nitrate molecule contains two nitrate ions.

Magnesium nitrate is a white crystalline powder, soluble in water, methanol, ethanol, liquid ammonia, and its aqueous solution is neutral. Magnesium nitrate can be used as a dehydrating agent, catalyst and wheat ashing agent for concentrated nitric acid, etc. Magnesium nitrate is also included in the "List of Hazardous Chemicals Prone to Explosion" and is controlled in accordance with the "Measures for the Management of Public Security of Hazardous Chemicals Prone to Explosion".

Magnesium nitrate has a variety of uses in industry. Among them, it is often used as a source of magnesium in fertilizers. Magnesium is an important element required for plant growth, which can promote green pigment synthesis and photosynthesis in plant leaves.

Therefore, magnesium nitrate can be given to crops in the form of fertilizers, providing enough magnesium. Magnesium nitrate is also widely used in agriculture, medicine, chemical laboratories, metal processing, and gunpowder industries.

Magnesium nitrate is somewhat corrosive and should be avoided from direct contact** and eyes. If the fruit accidentally comes into contact with magnesium nitrate, it should be rinsed immediately with plenty of water and treated with medical attention in time. When handling powders or solutions of magnesium nitrate, avoid inhaling its dust or vapors.

It is best to wear an appropriate protective mask or mask during the procedure.

Precautions in the use of magnesium nitrate

1. Keep away from fire and heat sources: Magnesium nitrate has a certain degree of flammability, so avoid contact with fire or heat sources. At the same time, when handling magnesium nitrate, it is also necessary to keep away from open flames and high temperature environments.

2. Storage: Magnesium nitrate should be stored in a dry, cool and well-ventilated place, away from organic matter and combustibles. Avoid mixing with other chemicals to avoid unforeseen reactions.

3. Use appropriate protective equipment: When handling magnesium nitrate, appropriate personal protective equipment such as protective gloves, glasses, and protective clothing should be worn to ensure safe operation.

Sodium sulfate chemical formula: Na2S04, sodium carbonate chemical formula: Na2C03, nitrate mu orange magnesium chemical formula:

Mg(N03)2, ferrous chloride chemical formula: FeCl2, alumina chemical formula: Al2O3.

According to the expression of the molecule, the chemical formula of the substance is correctly written, and the corresponding number is added before the chemical formula of the molecule, so that the two hydrogen molecules are expressed as: 2H2;So the answer is:

2h 2；According to the representation method of the ion: in the upper right corner of the element symbol representing the ion, mark the number of positive and negative charges carried by the ion, the number is in the front, the positive and negative signs are in the back, and when there is 1 charge, 1 should be omitted If it represents more than one of the ions, the corresponding number is added in front of the element symbol; Hence 1 sulfate ion is denoted as: SO42-; So the answer is:

so 4 2-；

According to the representation method of the ions, therefore the 3 aluminum ions are expressed as: 3al3+; So the answer is: 3al 3+;

The solvent in iodine wine is alcohol, and the chemical formula is: C 2 H 5 Oh; So the answer is: c 2 h 5 oh;

According to the writing steps of the chemical formula of the compound: classification, ordering, price, crossing, simplification, the valency of magnesium is +2, and the valency of nitrate is -1, so the chemical formula of magnesium nitrate is: mg(no 3)2; So the answer is:

Mg(NO3)2 solution: The atomic weights of N, O, and Mg are respectively , so the mass fraction of nitrogen content of magnesium nitrate (mg(NO3)2) is:

14x2/(24+(14+16x3)x2)x100%

28/(24+62)x100%

28/86x100%

Product Name: Magnesium NitrateCas Number: 10377-60-3

Molecular Formula: mg(NO3)2 Magnesium nitrate eggplant burning (easy to make explosion) This product is controlled by the public security department in accordance with the "Regulations on the Safety Management of Dangerous Chemicals". Store in a cool and dry place, away from fire and heat sources.

Do not mix with reducing agents, combustibles, metal powders, sulfur and phosphorus. Accidental ingestion, drinking warm water, inducing vomiting.

Fire extinguishing: mist water, sand.

Chemical Properties:1Reaction with non-metallic elements: 2mg+O2==2MGO 3mg+N2=mg3N2

2。Reaction with water: mg+2h2o=mg(oh)2+h2(heat)3.

Reaction with acid: mg+2HCl+mgCl2+H24Reaction with oxides:

2mg+CO2=2mgo+c(ignition)5Reaction with chlorine: mg+cl2==mgcl2 does not react with alkali.

2mg+O2 = (ignition) 2mgo

Mg+Cl2 = (ignition) MgCl2

Mg+2HCl=mgCl2+H2 Mg+acid=salt+hydrogenMg does not react with alkali.

Mg+H2O=Heat=Mg(OH)2+H2 mg(OH)2=Heat=MGO+H2O

3mg+N2=ignition=Mg3N2 2mg+CO2=ignition=c+2mgomg+cl2=mgCl2 2mg+O2=ignition Heating=2mgomg+ 2H+ =Mg2+ +H2

What I said upstairs is basically correct, if you are a high school and junior high school student, there are probably so many textbooks, and then mg also has an important role is to react with halogenated hydrocarbons in organic chemistry to form Grignard reagent.

Magnesium salts: salts containing magnesium ions.

Nitrate: A salt containing nitrate ions.

Calcium salts: salts containing calcium ions.

Magnesium nitrate is both a magnesium salt and a nitrate.

Magnesium sulfate: is a magnesium salt, which can also be said to be sulfate.

Calcium nitrate is both a calcium salt and a nitrate.

Magnesium nitrate is both magnesium and nitrate, and the same goes for calcium nitrate.

Magnesium sulfate is a magnesium salt, sulfate.