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The symbolic expression for the combustion of magnesium in air is: 2mg+o == ignition ==2mgo
Magnesium burns in space and emits a dazzling white light, emitting a large amount of heat, producing a white solid magnesium oxide.
mgo)。Magnesium has an atomic number of 12 and atomic weight.
It is a typical divalent metal with the common characteristics of metals. Because the oxide properties of magnesium are between "alkaline" and "earthy" like calcium, it is called alkaline earth metal.
Element. Magnesium is a silvery-white light alkaline earth metal with chemical properties.
It is lively, can react with acid to form hydrogen, and has certain ductility and heat dissipation. In 1808, David of England made magnesium metal from potassium reduction of magnesium oxide.
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2mg + O2 = ignition = 2mgo
Magnesium has strong reducibility, can react with boiling water to release hydrogen, can produce dazzling white light when burning, magnesium and fluoride, hydrofluoric acid and chromic acid do not react, and are not subject to caustic erosion, but it is easily soluble in organic and inorganic acids, magnesium can be directly combined with nitrogen, sulfur and halogens, including hydrocarbons, aldehydes, alcohols, phenols, amines, lipids and most oils, including organic chemicals and magnesium only slightly or not at all. However, the reaction with halogenated hydrocarbons in the absence of water is more violent (the generation of Grignard reagent) magnesium can react with carbon dioxide, so magnesium combustion cannot be extinguished with carbon dioxide fire extinguishers. Since magnesium can react with N and O, when magnesium is burned in the air, it burns violently and emits dazzling white light, which is exothermic and produces a white solid.
In vinegar, bubbles emerge quickly, float on the vinegar surface, and gradually disappear. Some fireworks and flares contain magnesium powder, which takes advantage of the dazzling white light that magnesium emits when burned in the air. The valency of magnesium in chemical reactions is usually +2 valence.
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The literal expression of magnesium strip combustion in air is: magnesium strip + oxygen magnesium oxide, and the reaction condition is ignition; Magnesium bars burn in the air by emitting a dazzling white light, releasing a large amount of heat to produce a white solid (magnesium oxide).
In which gases can magnesium be burned: (the following reaction conditions are ignition) 1. Magnesium burns in air (oxygen): 2mg O2 ==2mgo; Phenomenon: White smoke is produced, emitting a dazzling bright light.
2. Magnesium combustion in chlorine gas: mg Cl2==mgCl2; Phenomenon: White smoke is produced.
3. Magnesium combustion in nitrogen: 3mg N2==mg3N2; Phenomenon: Grayish-yellow smoke is produced.
4. Magnesium combustion in CO2: 2mg CO2==2MGO C; Phenomenon: White smoke is produced, and there is a small amount of black substance on the wall of the bottle.
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The chemical equation for the combustion of magnesium in air is as follows:1. Reaction with oxygen: 2mg+o = 2mgo (condition: ignition).
2. Reaction with nitrogen: 3mg+n = mg n (condition: ignition).
3. Reaction with carbon dioxide: 2mg+CO=2mgo+C (condition: ignition).
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Magnesium metal burns in the air.
2mg+o2=2mgo
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The phenomenon of magnesium strips burning in the air and seeping acres: clump slag.
1.dazzling white light;
2.Exothermic; 3.White smoke (white solid) is produced
Ignite. Magnesium + Oxygen – Magnesium Oxide.
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Reaction phenomenon: Burning with a dazzling white light. It reacts with nitrogen to form a yellow solid. It reacts with oxygen to form a white solid. Since it mainly reacts with oxygen, it is seen that white smoke and white solids are formed.
Reaction with non-metallic elements: 2mg+O2=2mgo, 3mg+N2=mg3N+CO2=2mgo+C.
Magnesium is a metallic element, and the element symbol is MG. In 1808, David of England used potassium to reduce magnesium oxide to make magnesium metal. It is a silvery-white light alkaline earth metal with active chemical properties, which can react with acid to form hydrogen, and has certain ductility and heat dissipation.
Magnesium is widely distributed in nature and is one of the essential elements for the human body.
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The phenomenon of magnesium bands burning in the air:
1.dazzling white light;
2.Exothermic; 3.White smoke (white solid) is produced
Ignition Magnesium + Oxygen - Magnesium Oxide.
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Phenomenon: Burning violently, producing a dazzling white light.
Verbal expression: magnesium + oxygen --- ignited --- magnesium oxide.
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It burns violently and emits a dazzling white light.
2mg+o2=2mgo
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Chemical experiments, combustion of magnesium strips in the air.
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For: magnesium strips + oxygen magnesium oxide.
The reaction conditions are ignition; Magnesium bars burn in the air by emitting a dazzling white light, releasing a large amount of heat to produce a white solid (magnesium oxide).
In which gases can magnesium be burned: (the following reaction conditions are ignition and sleepiness).
1. Magnesium burning in air (oxygen): 2mg O2==2mgo; Phenomenon: White smoke is produced, emitting a dazzling bright light.
2. Magnesium in chlorine.
Medium combustion: mg Cl2 == mgCl2; Phenomenon: White smoke is produced.
3. Magnesium stove burns in nitrogen: 3mg N2==mg3N2; Phenomenon: Grayish-yellow smoke is produced.
4. Magnesium combustion in CO2: 2mg CO2==2MGO C; Phenomenon: White smoke is produced, and there is a small amount of black substance on the wall of the bottle.
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Magnesium bars burn in the air, emitting a dazzling white light that emits a large amount of heat to produce a white solid.
Magnesium is a metallic element with the element symbol MG. In 1808, David of England used potassium to reduce magnesium oxide to make magnesium metal. It is a silvery-white light alkaline earth metal with active chemical properties, which can react with acid to form hydrogen, and has certain ductility and heat dissipation and clearing.
Magnesium is widely distributed in nature and is one of the essential elements of the human body.
Fields of application
It is often used as a reducing agent to replace metals such as titanium, zirconium, uranium, and beryllium. It is mainly used in the manufacture of light metal alloys, ductile iron, scientific instruments and Grignard reagents.
It can also be used to make fireworks, glitter powder, magnesium salt, aspirators, flares, etc. The structural characteristics are similar to aluminum, which has various uses as a light metal, and can be used as an alloying material for aircraft and missiles. But magnesium is flammable at the ignition point of gasoline, which limits its application.
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