Why can t copper sulphate reflect with acids and salts?

Normally, copper sulphate does not react with salts and acids.

For example, copper sulfate solution and table salt do not react because they do not produce insoluble substances or gases (this is the chemical law of metathesis).If there is a reaction to form sulfuric acid and copper chloride, then according to the same law, sulfuric acid and copper chloride should be able to react to form copper sulfate and sodium chloride, right?

Copper sulfate is not completely incapable of reacting with salts, copper sulfate and barium nitrate can react to form copper nitrate and barium sulfate (precipitation).It is also possible to react with strong reducing acids to form cuprous ions, which you should learn later.

As for why the law of metathesis reaction is true, you can check the relevant chapters of the textbook or search on Baidu"Chemical equilibrium", the formation of precipitates or gases is a condition that disrupts the equilibrium, and the equilibrium shift causes the reaction to occur.

Copper sulphate is a salt.

1 Salts can react with metals.

2 Salts can react with acids.

3 Salts can react with alkalis.

4 Salt can react with salt.

The reaction of 1 is a metathesis reaction to produce another salt and another metal.

For example: CuSO4+FE=FESO4+CU

2] [3] [4] belongs to the displacement reaction, and the reaction can only occur when the metathesis reaction is satisfied Such as: [4] BaCl2 + CuSO4 = Baso4 (precipitation) + CuCl23] NaOH + CuSO4 Na2SO4 + Cu(OH)2 (precipitation) 2] H2CO3 + CuSO4 = CuCO3 (precipitation) + H2SO4

It can metacompose with barium salts to generate barium sulfate precipitates and copper salts.

and acids do not reflect because sulfuric acid is a strong acid.

Cuso4 can react with soluble barium salts and carbonates.

2] H2CO3 + CuSO4 = CuCO3 (precipitation) + H2SO4 But this reaction written by Ke Jing'er is incorrect. Because weak acids cannot only be exchanged for strong acids, although they meet the conditions for metathesis reaction, they cannot react.

No, sulfuric acid itself is a strong acid.

If it is reflected, it does not conform to the law.

Copper and dilute hydrochloric acid cannot react, but it can react with very concentrated hydrochloric acid. Because the metallic activity (i.e., metallicity) of copper is less than that of hydrogen, the hydrogen in the acid cannot be displaced. Copper oxideThe reason why it can react with hydrochloric acid is that the oxygen ions in copper oxide and the hydrogen ions in hydrochloric acid react to form water.

Because this reaction can occur because when the hydrochloric acid is very concentrated, a more stable complex can be formed.

2H[CuCl], so it can be reacted, usually we think that the metal cannot replace the hydrogen in the acid after hydrogen, but if one of the products is very stable, it can be replaced, for example, silver can be replaced by gas.

In hydrogen iodide or hydrogen sulfide, hydrogen gas is generated, and the reason is raw silver iodide.

Or silver sulfide is very stable, such a complex situation does not need to be considered at the secondary school level.

Copper is oxidized to +1 valence of cuprous and mixed with chloride ions.

The binding is difficult to dissociate complex ions, and hydrogen gas is released at the same time. This reaction was able to proceed smoothly for the following reasons:

1. Concentrated hydrochloric acid.

In the environment, the chloride ion concentration is extremely high, and the complex ions formed are difficult to dissociate, which effectively reduces the redox potential of copper.

That is, it is generally believed that the reduction of copper in the environment of concentrated hydrochloric acid has increased.

2. The concentration of concentrated hydrogen hydrochloride ions is extremely high, that is, the concentration of the oxidant is extremely high, so that the reaction can be carried out. However, in order to facilitate the reaction, it is necessary to heat it properly.

Copper andDilute hydrochloric acidIt can't react, but it can react with very concentrated hydrochloric acid. Copper and dilute hydrochloric acid cannot react, reactEquationsFor 2Cu 4HCl 2H[CuCl]H, this reaction can occur because it can be produced more stable when hydrochloric acid is very concentratedcomplexes2H[cuCl], so it is reactive.

Copper is less active, iron elemental with copper sulfate.

The reaction can displace the copper element. Copper is insoluble in non-oxidizing acids. Copper is a less reactive heavy metal, which does not combine with oxygen in dry air at room temperature, and can produce black copper oxide when heated.

Uses of hydrochloric acid

One of the most important uses of hydrochloric acid is to pickle steel. Prior to the subsequent treatment of iron or steel (extrusion, rolling, galvanizing, etc.), hydrochloric acid can be used to react against rust or iron oxides on the surface. Carbon steel is usually cleaned using a 18% salt chasan acid solution as a pickling agent

The remaining waste acid from the source cavity is often reused as ferrous chloride.

solution, but the heavy metal content in it is higher, so this practice has gradually decreased.

Another major use of hydrochloric acid is in the preparation of organic compounds, such as the synthesis of PVC plastics.

The raw materials of vinyl chloride, dichloroethane, polycarbonate.

Precursor bisphenol A, catalytic adhesive polyvinyl formaldehyde, ascorbic acid.

Wait. Enterprises usually use in-house prepared hydrochloric acid instead of commercially available PVC. Hydrochloric acid also has great uses in pharmaceuticals.

The above content refers to Encyclopedia - Hydrochloric Acid.

Copper and sulfuric acid (H2SO4) are two common chemicals for backup, but copper does not react with sulfuric acid. Why is that? To understand this problem, it is necessary to start from the perspective of the exchange of electrons, which is a fundamental feature of chemical reactions.

In a chemical reaction, the substance that reacts is called the reactant, while the new substance that is produced is known as the product. In reactions, the atoms in the reactants often recombine to form new chemicals. For example, when hydrogen and chlorine react, they can produce hydrochloric acid gas:

h2 + cl2 2hcl

This reaction involves the transfer of electrons between the hydrogen atom and the chlorine atom because the atoms in hydrogen gas have different electron affinities with the atoms in chlorine gas. During the reaction, the hydrogen atom transfers its outermost electrons to the chlorine atom so that the hydrogen atom becomes a positively charged hydrogen ion (H+) and the chlorine atom becomes a negatively charged chloride ion (Cl-) and this pairwise nature of charges makes them attract each other and combine to form a hydrochloric acid molecule. This process can be represented by the following equation:

h2 + cl2 2h+ +2cl- 2hcl

However, in the case of copper and sulfuric acid, there is no electron transfer between them. This is because the molecular structure of sulfuric acid contains a lot of oxygen, while the electronic structure of copper causes the electrons of its atoms to be arranged in pairs. In this way, the oxygen atom in the sulfuric acid does not need more electrons to complete its outermost shell, and the atom in the copper also does not need to release any electrons.

Therefore, copper and sulfuric acid do not react in any way.

In conclusion, copper does not react with sulfuric acid because there is no transfer of electrons between them. This reactivity is more pronounced if parathiocucic acid contains a more unstable molecule, which can lead to a chemical reaction between the two compounds.

Copper does not react with dilute sulfuric acid, but copper can react with concentrated sulfuric acid.

Because copper is an inactive metal. When dilute sulfuric acid and copper are deblocked. The attraction of hydrogen ions to electrons is weaker than that of copper atoms, and electrons cannot be obtained from copper atoms.

So the two don't react to the Fan faction. The sulfate in concentrated sulfuric acid shows strong oxidation, and it can seize copper atoms. Rather, the sulfur table valence +6 valence is converted to +4 valence.

Cu ten 2H2 SO4 (thick) car digging = Cuso4 ten SO2 ten 2H2O

Because the chemical properties of copper metal are not very active, the order of metal activity (from active to inactive) in the junior high school stage is as follows:

Potassium, calcium, sodium, magnesium, aluminum, zinc, iron, tin, lead, (hydrogen), copper, mercury, silver, platinum, gold.

The metals that come after hydrogen generally do not react significantly with hydrochloric acid directly.

This depends on which solution enters first, if the alkaline solution enters the acid solution first, then the alkalinity of the solution will be weakened. If it is an alkaline solution added to the acid solution, then the acidity of the solution will be weakened. In addition, when the acid-soluble and alkali solutions are mixed together, the acid-base neutralization reaction will generally occur, and I said that it is relatively simple for you to understand that the two components are exchanged somewhat.

Then another ingredient is naturally formed. These two trembling substances exchange ions in an aqueous solution. So it's easy to have ionic substances.

I hope that if I try it myself, I will find that the color of the acid solution has changed to red, which means that there is hydrochloric acid, and the alkali solution will change from red to white, and the final answer is the concept of salt and water. These are all things that need to be seen by yourself, and you can try to master the knowledge and use it well, especially this eggplant problem is to get the solution bubble reaction that is easy to produce in the analysis through **. Hope it helps you a little.

There is a problem with the problem itself.

Hydrochloric acid and copper sulfate solution do not regurgitate. After the two are mixed, because the equivalent of hydrochloric acid is released by the thin branches, the acidity of the solution is weakened.