What is H2 CuO Cu H2O oxidant

The oxidizing agent is cuo which is oxidizing. The reducing agent is H2 and is reducing.

The oxidizing agent is Fe2O3 which is oxidizing and undergoes a reduction reaction. The reducing agent is H2, which is reductive and undergoes oxidation reaction.

3.In the reaction C+CO2*****2CO oxidant is CO2 oxidizing, a reduction reaction occurs, and it is reduced. The reducing agent is c, which is reducing, undergoes an oxidation reaction, and is oxidized.

4.( In the CO+CuO====Cu+CO2 reaction, the following statement is true (D).

is an oxidizing agent to be oxidized is an oxidizing agent and is reducible.

b. 1,2 ,3

, oxidizing, H2, reducible.

Oxidizing, oxidizing.

co, reducible, reductive.

Oxidizing, oxidizing, reducing.

c, reducible, reducing, oxidizing.

Judging criteria: After the reaction, the elements with increased valency are oxidized and act as a reducing agent in the reaction. On the other hand, what decreases must be oxidized by others, and it is also said to be an oxidizing agent.

1. The oxidant CUO has oxidizing properties, and the reducing agent H2 has reducing properties!

2. Ferric oxide, oxidizing, reducing reaction, carbon monoxide, reduction, oxidation reaction 3, carbon dioxide, oxidizing, oxidizing reaction, being reduced; Carbon, reducible, reductive, reducing, is oxidized. 4、d

Reducing agent: has reducing properties Loses electrons Chemical valence increases Oxidized Oxidation products Oxidant: Oxidizing Electrons Gain Electron valency decreases Reduced Generates reducing products I'll just say these Write these down and you can do this kind of question.

Oxidized H2 reduction.

Redox co reduction oxidation.

Redox c Reduction Oxidation Oxidation.

Summary. The chemical valence of copper is +2, hydroxide is -1 valence, and the compound requires valency neutralization, that is, it adds up to a stable 0 valence.

oh is one, cu is one, cu, o, h cannot be counted separately.

Why is the chemical formula of copper hydroxide Cu(OH)2

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The chemical valence of copper is +2, hydroxide is -1 valence, and the compound requires the valence neutralization, that is, it must add up to a stable 0 valence oh is one, cu is one, and cu, o, h cannot be counted separately.

At the same time, the hydrogen with the same carbon as the hydroxyl group in the ethanol obtains oxygen to form a hydroxyl group, which is closed to instability and becomes water and aldehyde, that is, water and acetaldehyde, 1, CuO+C2H5OH===Cu+C2H4O+H2O

a. Copper loses oxygen, b. Oxygen is obtained and oxygen is lost at the same time, c. oxygen is lost first, and then oxygen is obtained, and d. water is oxygenated.

A**Wrong?

Concentrated hydrogen peroxide is very oxidizing and will directly oxidize copper element.

Reason: Hydrogen peroxide contains a large number of original oxygen atoms [O], which has strong oxidation, which makes Cu oxidize and form various oxides of copper.

Equation: Cu + H2O2 = Cuo + H2O

Then dilute sulfuric acid reacts with copper oxide:

h2so4+cuo=cuso4+h2o

So H2O2, Cu, H2SO4 can react together.

Hydrogen peroxide: The chemical formula of hydrogen peroxide is HO, commonly known as hydrogen peroxide. The appearance is a colorless transparent liquid, which is a strong oxidant, and its aqueous solution is suitable for medical wound disinfection, environmental disinfection and food disinfection. In general, it will decompose into water and oxygen, but the decomposition rate is extremely slow, and the way to speed up the reaction is to add a catalyst - manganese dioxide or irradiate it with short-wave rays.

Copper sulfate: Copper sulfate (chemical formula: CuSO4), which is a white or off-white powder. Its aqueous solution is weakly acidic and blue.

Copper sulphate is an important raw material for the preparation of other copper-containing compounds. Bordeaux liquid can be obtained by mixing with lime milk, which is used as a fungicide. At the same time, copper sulfate is also the electrolyte used in electrolytic refining of copper.

The common form of copper sulfate is crystalline, copper monohydrate sulfate tetrahydrate ([Cu(H2O)4]SO4·H2O, copper sulfate pentahydrate), which is a blue solid (crystal). Its aqueous solution is blue due to the hydrated copper ions, so anhydrous copper sulfate is often used in laboratories to test the presence of water.

The essence of this reaction is carried out in two steps.

In the first step, hydrogen peroxide first forms copper oxide on the surface of the copper, as follows:

Cu + H2O2 = Cuo + H2O In the second step, copper oxide reacts with dilute sulfuric acid to obtain copper sulfate and water:

cuo + h2so4 = cuso4 + h2o So, combine the above two formulas into one, i.e.:

cu + h2o2 + h2so4 = cuso4 + 2h2o

Crazy line...Hydrogen peroxide oxidizes copper to copper oxide, which reacts with dilute sulfuric acid to form copper sulfate....That's just putting the two reactions together....o～o

Metathesis reaction undergoes to form water and copper sulfate.

It cannot react because the activity of copper is weaker than that of hydrogen, and the activity of reacting with sulfuric acid must be greater than that of hydrogen.

cu2o + 4nh3·h2o = 2[cu(nh3)2]oh + 3h2o

It produces a colorless solution, but if it is placed in the air, it will soon be oxidized and turn blue.

Copper sulphate is used as a catalyst.

2h2o2=cuso4=2h2o+o2↑

Process: CuSO4+H2O2 CuO2+H2SO4CuO2+H2O CuO2·H2O

2cuo2·h2o→←2cu(oh)2+o2cu(oh)2+h2so4→←cuso4+h2o