How does potassium permanganate produce hydrogen???

Oxygen can be produced by heating.

2kmNO4 = (heating) K2mNO4 + MNO2 + O2 (gas) From the knowledge learned, potassium permanganate cannot be used to produce hydrogen through any chemical reaction such as chemical reaction reaction, decomposition reaction, displacement reaction, metathesis reaction, etc., but it can produce oxygen through decomposition reaction. ”

Strongly agree. Potassium permanganate has strong oxidation and no reduction, and H basically shows +1 valence in the composition of the compounds, showing weak oxidation and no reduction, so potassium permanganate cannot react with any H compound worthy of hydrogen.

Under normal circumstances, there is no reaction, although potassium permanganate has strong oxidation, but the conditions required for the reaction with hydrogen are very harsh, high temperature, ignition and so on.

If you heat potassium permanganate, you produce oxygen, which reacts with hydrogen (which needs to be ignited) to produce water.

kmno4→k2mno4+mno2+o2

h2+o2→h2o

Of course, this is not a direct reaction of hydrogen with potassium permanganate.

If the reaction really should be:

kmno4+h2→k2mno4+mno2+h2o

lz, you are sure that it is to make hydrogen from potassium permanganate. Isn't it oxygen?

From the knowledge learned, potassium permanganate cannot be used to produce hydrogen through any chemical reaction such as chemical reaction reaction, decomposition reaction, displacement reaction, metathesis reaction, etc., but it can produce oxygen through decomposition reaction.

You made a mistake......It should be ...... oxygenPotassium permanganate does not contain elemental hydrogen ......

If it's oxygen, then heat it directly.

Hydrogen cannot be produced Oxygen can be produced by heating. Zinc granules and dilute hydrochloric acid are used to produce hydrogen.

Potassium permanganate pyrolysis of manganese dioxide, potassium manganate, oxygen.

2kmno4 heats k2mno4 mno2 o2 up arrow.

If it's hydrogen, there's no way... It should be ...... oxygen

Method for producing oxygen from potassium permanganate and testing oxygen.

I'm sorry, I can't help, our teacher doesn't seem to have taught potassium permanganate to make hydrogen, can it be made? I don't think so......

How can potassium permanganate not produce hydrogen!!

You're sure it's potassium permanganate that makes the hydrogen. Isn't it oxygen?

I can't help you if it's hydrogen, if it's oxygen. There is the answer above.

How can potassium permanganate be used to make hydrogen? It does not contain the element hydrogen.

In the primary school nature class, we have learned how to heat and decompose potassium permanganate to produce oxygen. Since potassium permanganate can separate and release oxygen when slightly heated, this method is commonly used in laboratories to produce oxygen. This reaction can be expressed as follows:

kmno4k2mno4 ＋ mno2 ＋ o2

Potassium permanganate) (potassium manganate) (manganese dioxide) (oxygen).

In addition, the pyrolysis of potassium chlorate also produces oxygen, which is another common method used to produce oxygen in the laboratory. When using this method, a small amount of manganese dioxide is usually added to potassium chlorate.

Experiment 4-8 Put a small amount of manganese dioxide in a test tube and heat it, and insert a wooden strip with sparks into the nozzle to observe whether the wooden strip rekindles.

The spark-bearing strips did not rekindle, suggesting that manganese dioxide did not release oxygen when heated.

Experiment 4-9 Put a small amount of potassium chlorate in a test tube and heat it until it is completely melted, and insert a wooden strip with sparks into the nozzle to observe whether the wooden strip rekindles. Continue heating until bubbles begin to emit air, then insert the sparkled strip into the nozzle to see if the strip rekindles. Remove the test tube from the flame, and when the inserted wooden strip with sparks no longer burns, quickly pour the manganese dioxide from the previous experiment into the test tube, and then test it with the wooden strip with sparks to observe whether the wooden strip rekindles.

Experiments have shown that after potassium chlorate is melted, it can be heated continuously to re-ignite the wooden strips with sparks, and then oxygen is released, and after adding manganese dioxide to potassium chlorate, it does not need to be heated to a molten state, and the inserted wooden strips with sparks can be re-ignited, proving that a large amount of oxygen is released.

Think about it] What role does manganese dioxide have shown through the above two experiments?

Experiments have proved that under normal circumstances, manganese dioxide cannot release oxygen when heated, but it can separate potassium chlorate to release oxygen at a lower temperature. Experiments have further proved that manganese dioxide is not consumed in this reaction, how much is added before the reaction, how much is still after the reaction, and the chemical properties have not changed. Substances that can change the chemical reaction rate of other substances in a chemical reaction, but their mass and chemical properties do not change before and after the chemical reaction, are called catalysts (or catalysts).

The role of catalysts in chemical reactions is called catalysis. Manganese dioxide is the catalyst for the reaction of potassium chlorate to produce oxygen when heated. In the chemical industry, such as the production of sulfuric acid, synthetic ammonia, etc., appropriate catalysts are used to change the reaction rate to increase the yield per unit time.

a, potassium permanganate.

Oxygen is produced and copper oxide is reduced with hydrogen.

The experiment does not require a beaker, so it does not fit the topic; b. There is no need for test tubes in coarse salt purification, so it does not meet the topic; c. All three experiments need to be heated, and alcohol lamps are used, so they are in line with the topic; d. There is no need for funnels in the experiments of using potassium permanganate to produce oxygen and reducing copper oxide with hydrogen, so it does not meet the meaning of the topic, so C is chosen

<> manganese potassium hydride is a white needle-like crystalline chemical inorganic hydride, manganese potassium hydride is a gray powder, semi-dispersed in oil 35% suspension. Manganese potassium hydride is very sensitive to humidity, easy to decompose in water, insoluble in liquid ammonia, carbon disulfide and other sulfides, need to be sealed and cooled and stored dry. Heating and water can release flammable gas, which has a certain corrosiveness, try not to contact the water flow to avoid pollution.

1. What is manganese potassium hydride

1. Manganese potassium hydride is a white needle-like crystalline chemical inorganic hydride, and the commodity of manganese potassium hydride is a 35% suspension of gray powder semi-dispersed in oil.

2. Manganese potassium hydride is very sensitive to humidity, easy to decompose in water, insoluble in liquid ammonia, sulfur dioxide, and other sulfides need to be sealed and stored in a cool and dry manner, and flammable gas can be released when heated and watered, which has a certain corrosiveness.

3. It is forbidden to contact the water source and the fire source when using it, because his chemical reaction activity is very strong, and it can react strongly with the fire source, causing combustion or **.

2. What is the use of potassium manganese hydride?

1. It has the advantages of high conductivity and fine plating during electroplating, and can also be used for heat treatment of ore flotation to extract gold and silver steel, and can also be used as a reagent for analytical chemistry.

2. It can also be used as a condensation agent and alkane agent for organic synthesis, such as in fruit trees and wheat fields, which can effectively prevent and control some diseases.

3. Be careful not to come into contact with manganese potassium hydride when using, if it is ** contact, immediately rinse with a large amount of flowing water, at least 15 minutes, if it is eye contact: immediately rinse thoroughly with a large amount of flowing water or normal saline for at least 15 minutes, and seek medical attention in time.

It's potassium hydroxide, right?

Manganese dioxide is oxidizing under acidic conditions and reducing under alkaline conditions.

4koh + 2mNO2 + O2 = 2k2mNO4 + 2H2O, which is the first step reaction of manganese dioxide to potassium permanganate from industrial use.

The second step is the disproportionation reaction of potassium manganate under acidic conditions to produce manganese dioxide and potassium permanganate.

3k2mno4 + 2h2so4 = 2kmno4 + mno2 + 2k2so4 + 2h2o