Putting copper, air, and dilute sulfuric acid together for a reaction will give copper sulfate.

It should be that copper reacts with oxygen in the air to form copper oxide, and then copper oxide reacts with dilute sulfuric acid to form copper sulfate.

It's a two-time reaction, and copper is less reactive than hydrogen, so it's not a direct reaction.

The second floor says that it needs to be heated, but in fact, slow oxidation does not need to be heated.

It is the reaction of copper with oxygen in the air to form copper oxide, and the reaction of copper oxide with dilute sulfuric acid to form copper sulfate, the equation is as follows:

2cu+o2=2cuo

cuo+h2so4=cuso4+h2o

For copper to react directly with sulfuric acid, it must be concentrated sulfuric acid:

Cu + 2H2SO4 (concentrated) = CuSO4 + SO2 + 2H2O

This is a one-step reaction.

2cu + o2 + 2h2so4 =△= 2cuso4 + 2h2o

Oxygen can promote the dissolution of copper.

But this does not mean that oxygen and copper react first.

Say a two-step reaction.

Knowledge should still be at the secondary school level

Copper oxide is obtained by oxidation in the air, and then copper sulfate is obtained by reacting with sulfuric acid.

This should be counted 2 times.

Copper and dilute sulfuric acid do not react directly, but can only react with oxygen first (which should be heated) and then react with dilute sulfuric acid.

to produce copper sulphate.

It seems that copper and oxygen can be heated to produce cuo. I think there were 2 reactions.

Because the oxidizing capacity of positive divalent zinc is higher than that of copper ions.

Weak, so the electrons of zinc can be transferred to copper ions and become zinc ions without being reduced, thereby accelerating the dissolution, that is, the galvanic cell principle.

Or, the question is about electrochemistry.

is the reason for the formation of galvanic cells, because if the dropwise addition of copper sulfate.

Zinc will replace a small amount of copper, constituting the positive electrode and the electrolyte solution, the image of talking and laughing, the same door of the original Zen book enters and exits the same door, so the reaction is very slow, after constituting the galvanic battery, it is a door in and another door out, so the rate is fast, (hint, but hydrogen is less than the original, because the replacement of copper also consumes zinc).】

Copper gradually dissolves, bubbles form, and a gas is produced that can turn purple litmus red or the magenta solution fade. The solution is diluted blue after cooling.

The reaction equation is Cu + 2H2SO4 (concentrated) (heated) = CuSO4 + SO2 + 2H2O

The side reactions are 5Cu + 4H2SO4 (concentrated) = Heating = 3CuSO4 + Cu2S + 4H2O and so on.

Copper cannot react with dilute sulfuric acid, but it can react with concentrated sulfuric acid under heated conditions because concentrated sulfuric acid has strong oxidizing properties.

The chemical reaction equation of the reaction is as follows: Cu + 2h so (concentrated) = Cuso + so + 2H O, in which the sulfur element is reduced by the valency of the S element, and the reduction reaction occurs; Concentrated H2SO4 is used as an oxidant and has oxidizing properties in this reaction.

Reaction of copper with concentrated nitric acid: Cu + 4Hno3 (concentrated) = Cu (No3) 2 + 2H2O + 2NO2.

Reaction of copper with dilute nitric acid: 3Cu + 8Hno3 (dilute) = 3Cu (NO3) 2 + 4H2O + 2NO.

What can concentrated sulfuric acid react with?

When heated at atmospheric pressure, concentrated sulfuric acid can react with all metals (including platinum, gold) except iridium and ruthenium to form ** metal sulfate, which itself is reduced to SO2, S, H2S or metal sulfides.

At room temperature, concentrated sulfuric acid can passivate metals such as iron and aluminum. The main reason is that the sulfuric acid molecules react with these metals to form a dense oxide film, preventing the sulfuric acid molecules from continuing to react with the metals.

Copper does not react with dilute sulfuric acid.

Only when heated can copper react with concentrated sulphuric acid to form copper sulphate, sulphur dioxide and water. This reaction is an acid-base reaction, and dilute sulfuric acid can combine the metal ion Cu2+ in copper with the hydrogen ion H+ in water to form the copper ion Cu2+ and the sulfate ion SO42-. At the same time, the H+ ions in the dilute sulfuric acid combine with the electrons in the copper to form hydrogen H2.

Sulfuric acid is one of the most reactive binary inorganic acids that reacts with most metals. High concentration of sulfuric acid has strong water absorption, can be used as a dehydrating agent, carbide containing substances such as carbonized wood Xunxiang stuffy wood, paper, cotton and linen fabrics and biological skin and meat.

Applications of Sulfuric Acid:

Sulfuric acid is used in the metallurgical industry and in the production of non-ferrous metals, especially in the metallurgical industry. For example, when refining copper, zinc, cadmium, and nickel by electrolysis, sulfuric acid is used in the electrolyte, and some high-quality refining also requires sulfuric acid to dissolve other metals that are inclusional.

In the steel industry, iron oxides must be removed from the surface of steel with sulphuric acid before cold rolling, cold drawing and stamping. Bending sheets, cold-drawn seamless steel pipes and other steel with high quality requirements must be washed with sulfuric acid every time they are rolled. In addition, seamed steel pipes, thin iron sheets, iron wires, etc. are pickled with sulfuric acid before galvanizing.

First aid measures: Sulfuric acid in contact with ** needs to be rinsed with a large amount of water, and then coated with 3% 5% sodium bicarbonate solution, and seek medical attention quickly. Immediately after splashing into the eye, the eyelid should be lifted and rinsed thoroughly with plenty of running water or saline for at least 15 minutes. Seek medical attention promptly.

After inhaling the vapor, it should be quickly removed from the scene to a place of fresh air. Keep your airways open. If you have difficulty breathing, give oxygen. If breathing stops, artificial respiration is performed immediately. Seek medical attention promptly. After ingestion, rinse the mouth with water, give milk or egg whites, and seek medical attention quickly.

Storage: <>

Store in a cool, ventilated warehouse. The storage temperature does not exceed 35, and the relative humidity does not exceed 85%. Keep the container tightly sealed.

Keep away from fire and heat sources, and smoking is strictly prohibited in the workplace. Keep away from flammable and combustible materials. Prevent vapor leakage into the workplace air.

Avoid contact with reducing agents, alkalis, and alkali metals.

(1) Under the condition of sufficient air (oxygen) and heating, copper can be slowly reduced in dilute sulfuric acid to generate copper sulfate and water, and the chemical equation of the reaction is: 2Cu+O2

2H2SO4 (rare).

2cuso4

2H2O 2) According to the valency of the elements in the element is 0, Cu belongs to the elemental, so the valency of the copper element is 0

The sulfate is -2 valence, let the valency of copper in copper sulfate be x, according to the algebraic sum of positive and negative valency in the compound is zero, it can be obtained: x+(-2)=0, then x=+2 valence

Therefore, the answer is: (1) 2Cu+O2

2H2SO4 (rare).

2cuso4

2h2o；(2) 0 price, +2 price

Copper does not react with dilute sulfuric acid, but copper and oxygen form copper oxide when heated, and copper oxide and dilute sulfuric acid form copper sulfate and water.

The total chemical equation: O2 + 2Cu + 2H2SO4 = 2CuSO4 + 2H2O

There are chemical reactions between many elements, can copper and dilute sulfuric acid react? In the world of chemistry, there are many elements, and there are various chemical reactions between these elements, such as displacement reactions. Decomposition reactions, metathesis reactions, chemical reaction reactions, etc., these are all chemical reactions between chemical substances that we have already learned about in middle school.

So there is a question as can copper react with dilute sulfuric acid? If not, why?

In fact, copper and dilute sulfuric acid are not capable of reactingHowever, copper and concentrated sulfuric acid can react under heating conditions, because if there is a reaction between copper and dilute sulfuric acid, it is contrary to the order of activity in the table of metal activity order, because metal copper is less active than hydrogen. Copper metal cannot replace the hydrogen element in dilute sulfuric acid.

However, when copper and concentrated sulfuric acid are reacted under heated conditions, a redox reaction is carried outAt this time, because the valence of copper can rise and fall. Hydrogen can also be added to increase, so the reaction can be carried out, because concentrated sulfuric acid itself is a substance with strong oxidizing properties, and concentrated sulfuric acid itself shows not only strong oxidation, but also its water absorption and dehydration.

Dilute sulfuric acid is generally able to be completely ionized in water, ionizing hydrogen ions and sulfate ionsTherefore, dilute sulfuric acid has a strong acid communication, so it can be replaced with a more reactive metal. For example, dilute sulfuric acid can react with iron, aluminum, etc., but it cannot react with copper, which is weaker than hydrogen, because the displacement reaction requires elemental compounds to react to generate another elemental substance and another compound.

Therefore, copper itself is a elemental substance, but it cannot displace the hydrogen in dilute sulfuric acidTherefore, it is not possible to react. There are many reactions in chemical reactions, and these reactions are going on all the time.

Copper can only react with concentrated sulfuric acid, not with dilute sulfuric acid.

Reasons: 1. Dilute sulfuric acid reflects the oxidation of H ions, but its oxidation is weak, and it can only oxidize the pre-hydrogen metal in the metal activity sequence table, but copper is a post-hydrogen metal.

2. Because the activity of copper is weaker than that of hydrogen, it cannot replace the hydrogen in dilute sulfuric acid, but because concentrated sulfuric acid has strong oxidation, it can oxidize less active copper elements.

Knowledge supplement: concentrated sulfuric acid reflects the oxidation of +6 valence sulfur element, which has strong oxidation and can oxidize hydrogen after metal, so it can react with copper. The reaction between concentrated sulfuric acid and copper under heated conditions is due to the occurrence of redox reaction, and the chemical equation of the reaction: Cu+2H2SO4=CuSO4+2H2O+SO2

Because copper is in the order of metal activity, it comes after hydrogen.

No, copper is an inactive metal that is reactive behind hydrogen and cannot displace hydrogen in acid.

It can react, but there are reaction conditions.

Hello, putting copper in dilute sulfuric acid does not produce a reaction.

Copper and concentrated sulfuric acid are heated in a container to form sulfur dioxide, and after a period of time, the reaction will gradually slow down, and finally the reverse travel should be stopped, because the solute mass fraction in the concentrated sulfuric acid solution gradually decreases, and copper does not react with dilute sulfuric acid, so the reaction finally stops.

When copper is replaced with zinc, zinc reacts with dilute sulfuric acid to form a chain of helium. Zinc and copper are added to the dilute hydrochloric acid solution, and bubbles emerge from the zinc reaction, and the copper does not react, and there is no phenomenon. It shows that copper is behind helium and zinc is in front of helium, which can prove the activity of zinc and copper.

When zinc is placed in a sulfuric acid solution, the surface of the zinc is replaced with red copper, indicating that zinc is more active than copper.