Oxidation Reactions Chemistry Reactions Displacement Reactions The relationship and difference and o

Oxidation reaction: Definition of junior high: the reaction of a substance and oxygen.

High school definition: A reaction in which the valency of an element is increased in a reaction.

Chemical reaction: A chemical change in which two or more substances react to produce one substance. For example, carbon monoxide reacts with oxygen to form carbon dioxide.

Displacement reaction: A chemical change in which one element and one compound react to produce another element and another compound. For example, hydrochloric acid and zinc react to produce hydrogen and zinc chloride.

The difference between the three: in terms of reactants, the displacement reaction must have elemental elements to participate in the reaction, but the oxidation reaction and the chemical reaction are not necessarily; In terms of products, the product of the chemical reaction must be a compound, and the displacement reaction must have both elements and compounds, but the oxidation reaction is not necessarily; From the valency point of view, there must be valency changes in oxidation reactions and displacement reactions, and valency changes are not necessarily used in chemical reactions.

Oxidizing (reducible) means that the valency of an element in a substance decreases (increases).For example, the valency of hydrogen can only increase, so it is only reducible, and the valency of oxygen can only be reduced, so it only has oxidation. In ferrous oxide FEO, the valency of Fe is +2, which can be increased to +3 and decreased to 0, so it is both oxidizing and reducing.

Chemical reaction] A reaction in which two or more substances produce one substance is called a chemical reaction.

Oxidation reaction] The reaction between a substance and oxygen is called an oxidation reaction.

Displacement reaction] is a reaction between one element and one compound, and the reaction that produces another element and another compound is called a displacement reaction.

Reduction reaction] The reaction in which the oxygen in an oxygenated compound is taken away is called a reduction reaction.

a+b--c Synthesis where b is oxygen is an oxidation reaction (junior).

A+BC--B+AC substitution reflects that A replaces B, that is, reduces, so A has reductiveness and relative B has oxidation.

I'll give you a simple one.

That is to say, the oxidation reaction is one of the chemical reactions. （a+b=c)

As for the substitution, it is the compound and the elemental that produce the compound and the elemental!

The reducibility of a substance means that after the chemical reaction, the chemical valence increases, and it is not only the reduction of an oxide into a elemental substance that is considered reducible.

Compounding: A reaction in which multiple substances produce a single substance.

Decomposition: The reaction of one substance to produce multiple substances.

Displacement: The reaction of elements and compounds to produce elements and compounds.

Metathesis reaction compounds react to form one or more precipitates, gases, or waters.

There is a crossover between the redox reaction and the above four reactions, as long as the reaction of the element valency changes before and after the reaction, it is a redox reaction.

A redox reaction is a reaction in which the valency of the elements participating in the reaction changes.

Displacement reaction refers to the reaction of one element and one compound to form another element and another compound, i.e., A+BC==B+AC

It can be said that the displacement reactions are all redox reactions, and the redox reactions are not necessarily displacement reactions.

Broadly speaking, redox reaction is a reaction in which the oxide loses electrons and the reductor gains electrons, that is, there must be electron gains and losses in the process of reaction.

The displacement reaction is a kind of redox reaction, because its form is: one compound + one element = another compound + another element.

Redox reaction refers to the reaction in which there is electron gain and loss or the valency of elements changes in chemical reactions, which is collectively referred to as redox reactions. The displacement reaction is completely in line with this concept, so the displacement reaction belongs to the redox reaction, but the displacement reaction is only a type of redox reaction.

A redox reaction is not necessarily a displacement reaction, and a displacement reaction is not necessarily a redox reaction.

1. Not necessarily.

The displacement reaction must be a redox reaction.

But redox reactions are not necessarily displacement reactions.

Because the redox reaction is a reaction with the valence of the valence rising, and the displacement reaction is the reaction of the elemental and the compound to form the elemental and the compound, 2, c+2cuo=CO2 +2cu belongs to the displacement reaction and also belongs to the reduction oxidation reaction.

Correct: Fe+H2SO4=FeSo4+H2 is a displacement reaction, but also a reduction oxidation reaction, the focus is on grasping the concept, and I don't know how to ask.

The displacement reaction is a redox reaction. Both of the above cases are displacement reactions, which are redox reactions. Judge the redox reaction to see if there is a change in valency, if there is a change, it is a redox reaction, and if there is no change in valency, it is not a redox reaction.

Displacement reactions are all redox reactions, and redox reactions are not necessarily displacement reactions.

Redox reactions are not necessarily displacement reactions.

And the displacement reaction must be a reduction oxidation reaction.

C+2CuO=CO2 +2Cu belongs to the displacement reaction, also belongs to the reduction oxidation reaction, Fe+H2SO4=FeSO4+H2 belongs to the displacement reaction, and also belongs to the reduction oxidation reaction, where there is a change in the valency of the elements, it is a reduction oxidation reaction, Fe+H2SO4=FeSO4+H2, in:

The valency of Fe changes from 0 to +2

The valency of h changes from +1 to 0

The displacement reaction must be a redox reaction.

Because there is a change in valency during the reaction. But redox reactions are not necessarily displacement reactions. For example, a part of the chemical reaction; a part of the decomposition reaction; There is also the reduction of iron oxide by carbon monoxide, which is a redox reaction, but not a displacement reaction.

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

Substitution reaction occurs under conditions:

1. Solid-state displacement: The displacement reaction between solids and solids or solids and gases under heating or high temperature conditions.

2. Liquid displacement in aqueous solution.

Priority Principle of Metal Replacement Reaction:

1. The metals in front can displace the metals in the back from their metal solution. (If the metal is too reactive, it will react directly with water and will not react with metal ions in water);

2. Theoretically speaking, the iron in the metal activity table and the metal in front of it can replace the hydrogen in pure water;

3. If only the oxidation of hydrogen ions is considered, the metal before hydrogen (h) can react with non-oxidizing acid to replace hydrogen;

4. The older the metals, the easier it is and the more they are displaced;

5. The easier it is for the metal to be ranked first, and the more the metal in other compounds is replaced.

The displacement reaction can be expressed as A+BC=B+AC or AB+C=AC+B,Displacement reactions are generally considered redox reactions, but some special reactions, such as displacement between metal carbonyl compounds, are not redox reactions.

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. The redox reaction is not necessarily a displacement reaction, and the displacement reaction must be a redox reaction.

Endothermic vs. exothermic of the reaction:

1. Exothermic reaction: the displacement reaction between metal and acid, the displacement reaction between metal and salt, the displacement reaction between aluminum and metal oxide, and the replacement reaction between active metal and water.

2. Endothermic reaction: the substitution reaction of less active metals and water vapor, most of the carbon and hydrogen reduction of metal oxides (a few such as carbon and hydrogen reduction of metal oxides are exothermic reactions), and the displacement reaction of carbon and water vapor.

The above content refers to: Encyclopedia - Displacement Reaction.

The displacement reaction is a redox reaction. However, the redox reaction does not necessarily be a displacement reaction.

The displacement reaction is a reaction in which an element reacts with a compound to form another element and compound.

Normally, the displacement reaction is a redox reaction, but some special reactions, such as the displacement reaction between metal carbonyl compounds, are not redox reactions.