What type of reaction must be oxygen also reaction

There must be a change in the valency, that is, the transfer of electrons must take place for it to be called a redox reaction.

1 Chemical reaction, a reaction in which two or more substances produce one substance It is not necessarily a redox reaction.

Example: CaO+H2O=Ca(OH)2 There is no change in valency in this reaction, so it is not a redox reaction.

2H2+O2=2H2O The valency of both hydrogen and oxygen changes, hydrogen goes from 0 to +1 and oxygen from 0 to -2, so it is a redox reaction.

2 Decomposition reaction A reaction in which a substance produces two or more other substances It is a reaction to the opposite of the chemical reaction to a certain extent, so it is not necessarily a redox reaction.

3 Displacement Reaction The reaction of one element and one compound to produce another element and compound must be a redox reaction.

e.g. Fe + 2HCl=FeCl2+H2

When a substance changes from an elemental substance to a compound, its valency will definitely change, such as iron from 0 to -2, so the displacement reaction must be a redox reaction.

4 Metathesis reaction.

It is a reaction in which two compounds produce two other compounds, and it must not be a redox reaction.

For example, H2SO4+BA(OH)2=BASO4+2H20

There is no change in valency in this process, so the metathesis reaction is certainly not a redox reaction.

First of all, remember: there must be a change in the valency of the elements in the redox reaction!

1. There is a chemical reaction with the participation of elemental substances.

2. There is a decomposition reflection with the participation of elemental substances.

3. Displacement reaction.

The above must be a redox reaction.

However, remember: the metathesis reaction must not be a redox reaction.

Oxidation reactionsNot a basic reaction type. The basic types of reactions are chemical reactions, decomposition reactions, and displacement reactionsMetathesis reaction

Oxidation reaction in the narrow sense refers to the combination of substances and oxidation; Reduction reaction.

Refers to the action of a substance losing oxygen. Broadly speaking, the loss of electrons is an oxidation reaction, and the gain of electrons is a reduction reaction. The action of introducing organic matter into oxygen or removing hydrogen during the reaction of organic matter is called oxidation.

The action of introducing hydrogen or losing oxygen is called reduction. The substance reacts slowly with oxygen and slowly heats up.

Oxidation that does not emit light is called slow oxidation, such as metal rust, biological respiration, etc. Intense luminous oxidation is called combustion.

Oxidation reaction characteristics

1. When the general substance and oxygen are oxidized, it is exothermic, and some may absorb heat such as the reaction of nitrogen and oxygen. Electrochemistry.

Oxidation occurs at the middle anode and reduction occurs at the cathode.

2. According to the different oxidants and oxidation processes, the oxidation reaction is mainly divided into air (oxygen) oxidation and chemical reagent oxidation. Chemical reagent oxidation has the advantages of good selectivity, simple process, convenience and flexibility, etc., in the field of pharmaceutical and chemical industry, due to the small tonnage of the product, the chemical reagent oxidation method is mostly used.

Redox reactions are not considered reaction types! He's just a general term for some types of reactions!

There are four basic types of reactions in inorganic chemistry, which are.

Chemical reaction (a reaction in which two or more substances produce another substance.) i.e., multi-change one), decomposition reaction (a reaction in which two or more other substances are generated from one substance. i.e., one becomes many), displacement reaction (a reaction in which one element reacts with one compound to produce another element and another compound.

Both belong to redox reactions), metathesis reactions (reactions in which two compounds exchange components with each other to produce two other compounds. are non-redox reactions).

The other is divided according to electron transfer (applicable to inorganic and organic chemistry): oxidation reaction, reduction reaction; Redox and non-redox reactions.

There are many categories in organic chemistry, including free radical reactions and ionic reactions; electrophilic reaction, nucleophilic reaction; Nitrification, halogenation, sulfonation, ammoniation, acylation, cyanidation, addition, elimination, substitution, polyaddition, polycondensation, etc.

Summary. Oxidation reaction is not the basic type of reaction because reduction reaction is bound to occur. In the event of an oxidation reaction, a reduction reaction must occur, so this is another classification of chemical reactions.

i.e. redox and non-redox reactions. There are just two different ways of categorizing.

Why oxidation reactions are not the four basic reaction types.

Isn't some oxidation reactions still chemical reactions?

The oxidation reaction is not a basic type of reaction because the hypothetical reduction reaction is bound to occur. In the case of a differential oxidation reaction, a reduction reaction must occur, so this is another classification of chemical reactions. That is, redox reactions, Jane Tsai and non-redox reactions.

There are just two different ways of categorizing.

Because the oxidation reaction and the reduction reaction are classified from different perspectives with the basic reaction type, and the four basic types defined in the junior high school stage are those four, and the oxidation or reduction reaction is judged from the oxygen gain or oxygen loss to resist purity, or can be one of the Huai type.

It is all oxidation reflux reduction reaction. Complex Digestion Reaction: The two compounds exchange components with each other to generate the other two compounds.

All are non-redox reactions. Knowledge Development 1The chemical reaction between a substance and oxygen is a type of oxygen reaction; Oxygen can be and many.

Sulfur and oxygen are formed under the condition of ignition to form sulfur dioxide why is it a chemical reaction is also an oxidation reaction.

What is the reaction of oxygen ignition to generate sulfur dioxide, sulfur is burned in oxygen to form sulfur dioxide, which belongs to the chemical dismantling reaction, oxidation reaction or both chemical reaction and oxidation reaction, the answer is that it is both a chemical reaction and an oxidation reaction.

Chemical reactions. Classification of chemical reaction types: chemical reaction reaction, decomposition reaction, displacement reaction, metathesis reaction.

Chemical reaction: A chemical reaction is a reaction in which two or more substances react to form a new substance. Some of these reactions are redox reactions and some are non-redox reactions.

In addition, chemical reactions generally release energy. It can be abbreviated as a+b=ab.

Decomposition reaction: The reaction in which two or more other substances are generated from one substance is called a decomposition reaction. The abbreviation is divided into two and is expressed as ab=a+b. Only the chemical compound can undergo a decomposition reaction.

Displacement reaction: a chemical reaction between an element and a compound to form another element and a compound, is one of the four basic types of reactions in chemistry, including the reaction between metal and metal salt, the reaction between metal and acid, etc. It can be abbreviated as ab+c=a+cb.

Metathesis reaction: A reaction in which two compounds exchange components with each other to produce two other compounds. The essence is:

The two substances that undergo metathesis reaction exchange ions with each other in the aqueous solution, and combine into substances that are difficult to ionize - precipitation, gas, and water (weak electrolyte), so that the ion concentration in the solution decreases, and the chemical reaction proceeds in the direction of the decrease in ion concentration. It can be abbreviated as ab+cd=ad+cb.

Displacement reaction.

The four basic types of reactions are the most important types of chemical reactions, which are chemical reactions, decomposition reactions, displacement reactions and metathesis reactions.

The redox reaction is not necessarily a displacement reaction, and the displacement reaction must be a redox reaction. The displacement reaction is a chemical reaction in which an element reacts with a compound to form another element and a compound, and is one of the four basic reaction types in chemistry, including the reaction between metal and metal salt, the reaction between metal and acid, etc. It is a reaction of one element with one compound to produce another element with another compound.

Of the four basic types of reactions, the displacement reaction must be redox reactions.

The criterion for redox reaction is whether the valency has changed, if the valency has changed, it is, and if the valency does not change, it is not. From this, the four basic types of responses can be analysed as follows:

1) Chemical reaction.

2mg+O2=ignition=2mgo, valency change, yes.

CaO+ H2O== Ca(OH)2, the valency does not change, it is not.

Conclusion: Some chemical reactions are redox reactions, and some are not.

2) Decomposition reaction.

2kclo3 = heating = 2kcl + 3o2, valency change, yes.

CaCO3 = High temperature = Cao + CO2, the valency is unchanged, no.

Conclusion: Some of the decomposition reactions are redox reactions, and some are not.

3. Displacement reaction.

Zn+H2SO4==ZnSO4+H2, valency change, is.

H2 + Cuo = High temperature = Cu + H2O, valency change, yes.

Conclusion: The displacement reactions are all redox reactions (the displacement reaction is a reaction between an element and a compound to produce another element and another compound, in which there must be a change in valency).

4 Metathesis reaction.

NaOH+HCl==NaCl+H2O, the valency remains unchanged, no.

CaCO3 +2HCl==CaCl2 +CO2 +H2O, the valency is unchanged, it is not.

Conclusion: None of the metathesis reactions are redox reactions (the metathesis reaction is the exchange of some ions between two compounds to form two new compounds, so the valency will not change).

To sum up, the displacement reaction must be a redox reaction.

Chemical reaction, decomposition reaction, displacement reaction, metathesis reaction.

Redox: A type of reaction in which the oxidation number of an element changes before and after a chemical reaction.

Redox reactions are a type of reaction that is divided according to the gain and loss of electrons.

Redox reactions include chemical reactions and decomposition reactions, but redox reactions are not only these two reactions, as long as there are electron gains and losses, they are all redox reactions

The four basic reactions are incomplete, but they are divided from the reaction form, such as this: 8Hno3 + 3Fe = 2O + 3Fe (NO3) 2 + 4H2O

It does not belong to the four major reactions. The redox reaction is an independent division, which is divided by looking at whether the valency changes in the reaction, whether the gain and loss of electrons and the shift occur, and is not necessarily related to the four basic reactions.

There are many classifications of chemical reactions, and one of them is to divide chemical reactions into redox reactions and non-redox reactions. The classification criterion is the presence or absence of electron transfer in the reaction. The replacement of elemental matter is always elemental + compound - elemental + compound, there must be a change in the valency of the element, and there must be a change in the valency of the element involved in the synthesis and decomposition.

The redox reaction is classified according to the loss of electrons in the chemical reaction, and the shift of electrons, while the displacement metathesis is carried out according to the classification of substances, which are two different classification methods with different classification angles. When there are elemental participation, or elemental formation, there must be a change in the valency of the element, and there must be a gain or loss or shift of electrons, so it must be a redox reaction.

It does not belong to any type of reaction, it is only defined according to the change of valency, displacement and synthesis are typical redox...

A redox reaction is a reaction with a change in valency. The displacement reaction and the combination of elemental groups and the decomposition reaction all have changes in valency, so they all belong to redox reactions, while metathesis reactions do not belong to the change in valency. If it belongs to the four major reactions, then it is mixed with the displacement reaction and the combination of elemental groups, and the decomposition reaction cannot be classified.

That's about it, ok???

The redox reaction does not belong to the four basic reactions, but the displacement must be a redox reaction, and the chemical decomposition may or may not be (for example, hydrogen combustion is a chemical and redox reaction, and the formation of sulfurous acid from SO2 and water is a chemical reaction but not a redox reaction).

The redox reaction is determined by whether it gains or loses with electrons.

The four basic reactions are: chemical reaction reaction, decomposition reaction, displacement reaction and metathesis reaction "The entire displacement reaction and the combination and decomposition reaction of the elemental class all belong to the redox reaction" is the basic reaction type, and the displacement is the basic reaction type.

Classified by the gains and losses of electrons.

The four basic types of reactions are displacement reactions, chemical combinations, decompositions, and metathesis reactions, among which displacement reactions.

All are redox reactions, because there are elemental participation, there must be a rise and fall of valence, and the synthesis and decomposition are partly redox reactions, and some are not.

The metathesis reaction is not a redox reaction because it is only the mutual exchange of anions and cations, and there is no rise and fall of valence.

Redox reactions are not the four basic reactions.

Absolutely!