Does combustion have to be all oxidation?

The definition of combustion is a redox reaction that is intense and glowing.

Magnesium strips in nitrogen, carbon dioxide.

Combustion is an oxidation reaction.

Oxidation reaction refers to the transfer of reactant electrons during the reaction, and combustion must be accompanied by the transfer of electrons.

For example, magnesium is burned in carbon dioxide: magnesium is oxidized, carbon dioxide is reduced, and the reactants in the reaction have electron transfer, such as nitrogen and magnesium reaction: 3mg+n2=mg3n2, magnesium rises from 0 valence to +2 valence, and nitrogen decreases from 0 valence to -2 valence, which is a redox reaction, and the combustion reaction is an oxidation reaction.

From the perspective of high school chemistry, this statement is true. But if you are in the third year of junior high school, according to the definition at that time: the reaction between a substance and oxygen is called an oxidation reaction.

Then the combustion of H2 and Cl2 is not an oxidation reaction! This is not right in high school chemistry. Therefore, your problem is limited in the third year of junior high school, and it is easier to understand it in the first year of high school when you learn about redox reaction.

You should have finished the high school entrance examination, so you still understand that this sentence is right, and the oxidation reaction and the reduction reaction are inseparable, they occur at the same time, so your sentence can also be said to be: combustion must be an oxidation (reduction) reaction!

Yes. It was said above that burning wine in oxygen is not an oxidation reaction, and this is wrong. As long as the electron transfer is accompanied by a chemical reaction, it must be an oxidation reaction. Hehe, I wish you a happy study o( o

Combustion itself is defined as a violent oxidation reaction of combustible gas, even if hydrogen is burned in chlorine gas or an oxidation reaction. The oxidation reaction is fine as long as the electrons are gained or lost, and there is no need for oxygen to participate.

Combustion is a chemical reaction. Combustion is an exothermic and luminescent chemical reaction, and its reaction process is extremely complex.

The chain reaction is the essence of the combustion reaction, and light and heat are the physical phenomena that occur during the combustion process.

Combustion-related:Rapid exothermic and luminescent oxidation reaction of combustibles with oxygen or air.

And in the form of flames. The combustion of coal, oil, and natural gas is the national economy.

The main thermal power of the various sectors**.

The surge in demand for energy sources and the rapid development of aerospace technology in recent times have promoted fluid dynamics.

The combination of chemical reaction kinetics and heat and mass transfer has made a leap forward in the discipline of combustion. On the other hand, the development of fire prevention technology for the purpose of extinguishing combustion has also promoted the research of combustion theory.

Combustion is a chemical reaction. Generally speaking, combustion is a chemical reaction because of the violent reaction between combustibles and oxygen, which produces new substances.

Combustion is not a physical reaction, it is a chemical reaction, a violent redox reaction.

Combustion is a chemical reaction that glows and heats. New substances will be produced and there will be a transfer of electron pairs.

Combustion is a chemical change in which new substances are generated.

We believe that chemical changes are predominant, although they may also be accompanied by physical changes. But there must be a new substance being generated.

Combustion must be an oxidation reaction.

The definition of combustion is a redox reaction that is intense and glowing.

The definition of oxidation reaction in the junior stage refers to the chemical reaction of a substance with oxygen, in which oxygen is provided.

But when sodium is burned in chlorine, it is also an oxidation reaction, because in high school you will know that the redox reaction is a reaction with a change in valency, or a reaction with electron transfer.

Therefore, combustion is an oxidation reaction.

Hello. Not all combustion is an oxidation reaction. For example:

Sodium can be burned in chlorine gas to produce sodium chloride. Magnesium can be burned in carbon dioxide to form magnesium oxide. Not all combustion reactions require the participation of oxygen, and the combustion of some reactive metals can also be carried out in inactive combustible gases such as nitrogen and carbon dioxide.

The chemical equation is as follows:

2na+cl2=2nacl

2mg+co2=2mgo+c

General chemical definition of combustion: combustion is a kind of luminescence and heat generation.

Intense chemical reactions. Combustion is a violent, luminous, and heat-generating chemical reaction between combustibles and combustibles (oxidants).

Broad definition of combustion: Combustion refers to any violent reaction that emits light and heat, without necessarily having oxygen involved. For example, sodium metal.

Na) and chlorine (Cl) to form sodium chloride.

NaCl), which does not involve oxygen, but is a vigorous chemical reaction that emits heat and heat. It also falls under the category of combustion.

Note: The "combustion" of nuclear fuel, the fusion of light nuclei and the fission of heavy nuclei are all "nuclear reactions" that emit light and generate heat, not chemical reactions, and do not belong to the category of combustion.

Therefore, combustion is a chemical reaction, because after combustion, combustibles will inevitably exchange energy with combustibles to obtain new substances.

Yes, the combustion of three conditional combustibles, accelerants, reaches the ignition point. The accelerant is generally oxygen, so combustion is an oxidation reaction with oxygen. It must be a chemical reaction.

Combustion is a phenomenon caused by the violent reaction between combustibles and oxygen, and the formation of one or several new substances, of course, is a chemical reaction.

Yes, when combustion, there must be a chemical reaction between the burning substance and other substances such as oxygen, and since it produces a new substance, this change is a chemical change.

Combustion is a symptom of an intense chemical reaction.

Combustion is a chemical reaction. Combustion is an exothermic chemical reaction, and light and thermal rot are physical phenomena that occur during combustion. During combustion, momentum, heat and mass are transferred between fuel, oxygen and combustion products, resulting in a complex structure of flame with multi-component concentration gradient and non-isothermal two-phase flow.

The three elements of combustion.

1. Combustibles, all substances that can be burned in the air (or chemical reaction with other oxidants) are called combustibles.

2. Combustibles are substances that can help and support the combustion of combustibles, that is, they can oxidize with combustibles.

The substance is called an oxidant.

3. Temperature (ignition source), ignition source refers to the energy supplied to the reaction between combustibles and combustibles**.

Categories: Education Academic Exams >> Study Help.

Problem description: Does combustion necessarily require oxygen to produce new substances?

Analysis: Oxygen is not necessarily required for combustion, for example, hydrogen is burned in chlorine.

H2+Cl2 = (light) 2HCl

But it is certain that combustion must be a redox reaction, because combustion must be accompanied by the transfer of electrons, and the chemical reaction must have the generation of new substances, otherwise it is not a chemical reaction.

Combustion is an oxidation reaction. The definition of combustion is a redox reaction that is intense and glowing. Slow oxidation is a chemical reaction between a substance and oxygen, in which oxygen is provided. The oxidation reaction in the narrow and blind cavity refers to the combination of substances and oxidation.

When the general substance oxidizes with oxygen, it is exothermic, and some may absorb heat such as the reaction between nitrogen and oxygen. In electrochemistry, the anode is oxidized and the cathode is reduced.