What are the basic types of reactions in chemistry?

There are four basic types of chemical reactions: compounding, decomposition, displacement, and metathesis.

Chemical reaction: A reaction in which two or more substances produce another substance, called a chemical reaction.

Decomposition reaction: A chemical reaction in which two or more other substances are produced from one substance, called a decomposition reaction.

Displacement reaction: The reaction in which one element reacts with another compound to form another element and compound is called a displacement reaction.

Metathesis reaction: The reaction in which two compounds exchange components with each other to form two other compounds is called metathesis reaction.

There are four basic types of reactions in junior high school chemistry;

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

Four ahs, chemical decomposition, metathesis, displacement.

Absolutely!!

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

Compounding, decomposition, displacement, metathesis.

There are only four basic types: decomposition reactions, chemical reaction reactions, metathesis reactions, and displacement reactions. And there are also redox reactions, special certain reactions, such as: saponification reaction, esterification reaction, etc.

1: Inorganic reaction: decomposition reaction (refers to the reaction in which a compound is decomposed into two or more simple elements or compounds under specific conditions).

Chemical reaction (refers to the reaction of two or more substances to produce a new substance).

Metathesis reaction (a reaction in which two compounds exchange components with each other to produce two other compounds).

Displacement reaction (refers to the reaction of one element and one compound to produce another element and another compound).

2: Organic reactions:

Addition reaction (after the addition reaction is carried out, the heavy bond opens and the atoms at each end of the original heavy bond are connected to a new group).

Elimination reaction (a reaction in which an organic compound removes a small molecule (e.g., water, hydrogen halide, etc.) from one molecule under the right conditions to produce an unsaturated (double or triple bond) compound).

Substitution reactions (reactions in which an organic compound is attacked by a certain class of reagent, causing a group (or atom) in a molecule to be replaced by that reagent).

Polyaddition (monomers react with each other to form a polymer compound, called polyaddition).

Polycondensation reaction (a reaction in which two or more organic molecules interact and combine to form a macromolecule by covalent bonding while losing water or other relatively simple inorganic or organic molecules).

3: Redox reaction (redox reaction is a chemical reaction in which the valency of a certain element changes before and after the reaction).

4: Ionic reaction (chemical reaction with the participation of ions).

5: Spontaneous reaction, non-spontaneous reaction.

6: Exothermic reaction, endothermic reaction.

7: Reversible reaction, irreversible reaction.

8: Isomerization reaction (oxygen to ozone, ozone to oxygen).

Note: The above are the main types of reactions, and there are many more to be specific.

For example, the neutralization reaction is actually a metathesis reaction, which is also an exothermic reaction and a spontaneous reaction.

Another example is the esterification reaction, which is actually a substitution reaction.

There are also sulfidation, nitrification, hydrolysis, combustion, dehydration, electrophilic reactions, nucleophilic reactions; Nitrification, halogenation, sulfonation, ammoniation, acylation, cyanidation and so on.

Just remember the basic types of reactions, and the rest just need to be understood.

One more point: a nuclear reaction is not a chemical reaction.

The four basic types of chemical reactions include: chemical reactions, decomposition reactions, displacement reactions, and metathesis reactions.

1. Chemical reaction.

1.Conception. A chemical reaction is a reaction in which two or more substances produce another substance.

2.Judgment. To determine whether a reaction is a chemical reaction, it is necessary to focus on the concept and reaction characteristics of chemical reaction.

To determine whether a reaction chemical equation is a chemical reaction, it is necessary to assume that the reaction can occur, and then compare it with all the characteristics of the chemical reaction, and only if there are three reaction characteristics at the same time, it can be determined as a chemical reaction. Otherwise, the chemical reaction cannot be included.

Second, the decomposition reaction.

1.Conception. A decomposition reaction is a reaction in which one substance produces two or more other substances.

2.Judgment. Under the premise that the reaction can occur, it is necessary to see whether the reaction has the three characteristics of decomposition reaction.

3. Displacement reaction.

1.Conception. The displacement reaction is a reaction in which one element reacts with one compound to produce another element and another compound.

2.Peculiarity. a+bc=ac+b is abbreviated as "one for one".

Reactants and products are both two substances.

The reactant is one elemental substance and one compound, and the product is another elemental substance and another compound.

Fourth, metathesis reaction.

1.Conception. The metathesis reaction is a reaction in which two compounds exchange components with each other to produce two other compounds.

2.Judgment. To determine whether a reaction has a metathesis reaction, it is necessary to meet the characteristics of the metathesis reaction and the conditions for the reaction to occur.

1. Chemical reaction: Chemical reaction refers to the reaction of two or more substances to produce 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 = 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. 3. Displacement reaction:

The reaction of one element with a compound to form another chemical reaction with another element and compound 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 can be abbreviated as ab + c = a + metathesis reaction: a reaction in which two compounds exchange components with each other to produce two other compounds.

Its 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 is reduced, and the chemical reaction is carried out in the direction of the reduction of ion concentration. It can be abbreviated as ab+cd=ad+cb.

There are four basic types of reactionsIt is a very important type of reaction in chemical reactions, which is chemical reaction, decomposition reaction, displacement reaction andMetathesis reactionChemical 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.

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.

Equilibrium of chemical reactions:

According to the Gibbs free energy criterion, when δrgm = 0, the reaction reaches its maximum and is in equilibrium. Chemical equilibrium.

The establishment is based on a reversible reaction.

as a premise. A reversible reaction is a reaction that can be carried out both forward and backward under the same conditions. The vast majority of chemical reactions are reversible and can reach equilibrium to varying degrees.

From a kinetic point of view, at the beginning of the reaction, the concentration of reactants is larger and the concentration of products is smaller, so the reaction rate is positive.

Greater than the rate of the reverse reaction. As the reaction progresses, the concentration of reactants decreases and the concentration of products increases, so the positive reaction rate decreases and the reverse reaction rate increases. When the forward and reverse reaction rates are equal, the concentration of each substance in the system no longer changes, and the reaction reaches equilibrium.

The above content refers to: Encyclopedia - Four basic reaction types.

The four basic chemical reactions are:

Chemical reaction: A reaction in which two or more substances produce one substance. For example, hydrogen is burned in oxygen to produce water;

Decomposition reaction: A reaction in which a substance produces two or more substances. For example, the reaction of potassium chlorate to oxygen in the laboratory;

Displacement reaction: A reaction in which one element and one compound exchange components with each other to produce another element and another compound. Such as: the reaction of zinc and dilute sulfuric acid to hydrogen.

Metathesis reaction: A reaction in which two compounds exchange components with each other to form two new compounds.