The chemical equation for the product of the combustion of potassium permanganate in air

The equation is as follows:The reaction equation can be written according to the reaction principle of potassium permanganate heating to produce oxygen and combined with the writing procedure book of the equation. The specific Kuan Kaisheng is:

2kmNO4 = heating K2mNO4+MNO2+O2. Potassium permanganate is blackish-purple, elongated prismatic crystals or granules with a blue metallic luster; Odorless; In contact with some organic matter or easy oxides, it is easy to occur**, soluble in water.

Potassium permanganate chemical propertiesPotassium permanganate is one of the strongest oxidizing agents, as an oxidant is greatly affected by pH, and has the strongest oxidizing ability in acidic solutions. Its corresponding acids permanganate HMNO4 and anhydride Mn2O7 are strong oxidants, which can automatically decompose and heat, and cause combustion in contact with organic matter.

Potassium permanganate has strong oxidizing properties and is commonly used as an oxidant in laboratories and industries, and decomposes in case of ethanol. It slowly decomposes into manganese dioxide, potassium salts, and oxygen in acidic descendant media. Light has a catalytic effect on this decomposition of Shen Lao, so it is often stored in brown bottles in the laboratory.

As can be seen from the elemental potential diagram and the oxidation state diagram of the free energy, it is extremely oxidizing. In alkaline solutions, its oxidation is not as strong as in acidic solutions. When used as an oxidant, its reduction products vary depending on the acidity and alkalinity of the medium.

The above content reference: Encyclopedia - potassium permanganate.

Potassium permanganate is heated in the laboratory to produce oxygen: 2kmNO4 = =K2mNO4+ MNO2+ O2 (Note: Because the reaction generates mNO2, there is no need to add MNO2 as a catalyst).

Note: When using potassium permanganate decomposition to produce oxygen, a small fluffy cotton ball (or a small amount of glass wool) should be placed at the mouth of the test tube to prevent potassium permanganate powder from entering the catheter and causing blockage.

If the coefficient of KMNO4 is 1

The amount of each substance contained in the system is:

k 1mn 1

o 4 According to conservation, the product contains the same amount.

Then only k2mno4 contains k in the product, so this coefficient is set as k 1

There is k2mno4

k 1mn 1/2

o 4*1/2=2

The remaining mn 1-1 2=1 2

o 4-2=2

Only mno2 contains Mn, followed by mno2, which contains 1 mn in mno2 and 1 2 mn remaining

Therefore mno2 is 1 2

O in mno2 is.

o 1/2*2=1

The remaining oo 2-1=1

The remaining O is present in O2, 1 O2 contains 2 O, and 1 O is 1 2 O2

o2 1/2

kmno4＝(1/2) k2mno4+(1/2 )mno2+(1/2) o2

Since equations usually need to be rounded, take the least common multiple of the coefficient 2*2

What does it mean to be 2kmno4 k2mno4+mno2+o2mn 1-1 2=1 2.

It is the amount of remaining Mn.

The total amount of Mn is 1, the front KMno4 coefficient is set at 1, the rear trim K2MNO4 is 1 2, Mn 1 2 is used, and the remaining Mn 1-1 2=1 2

How do you calculate one-half O2? Why 2 in 1.

After trimming K2MNO4 MNO2, there is only 1 O, which is 1 2 O2, so the O2 coefficient is 1 2

2kmNO4=K2MNO4+MNO2+O2 The reaction condition is heating, and the gas release symbol is added to the chemical formula of oxygen!

The decomposition products potassium manganate, manganese dioxide and oxygen, the chemical formula is not easy to type, please forgive me.

KMNO4 = K2MNO4+MNO2+O2 This reaction needs to be heated.

2kmno ==k mno +mno +o mass relation: 2kmno :2 158;k₂mno₄197；mno₂87；o₂32。

Potassium permanganate is one of the strongest oxidizing agents, as an oxidant is greatly affected by pH, and has the strongest oxidizing ability in acidic solutions. Its corresponding acids, permanganic acid and anhydride, are strong oxidants, which can automatically decompose and heat, and cause combustion in contact with organic matter.

2kmNO4===K2mNO4+MNO2+O2 (with a heating symbol on the equal sign).

Quality relations: 2 158 197 87 32

The chemical equation for potassium permanganate heating is 2kmNO4 K2mNO4 + MNO2 + O2.

Potassium permanganate (KMNO4) is a purple-black crystal that undergoes a decomposition reaction when heated. The chemical equation of 2kmNO4 K2mNO4 + MNO2 + O2 shows the decomposition reaction of potassium permanganate during heating. According to the equation, two potassium permanganate molecules decompose to form a potassium permanganate molecule (K2MNO4), a manganese dioxide (mnO2) molecule, and an oxygen (O2) molecule.

This reaction is a redox reaction. In the chemical equation, potassium permanganate undergoes an oxidation reaction and is reduced to the products of potassium permanganate and manganese dioxide, while oxygen is released. In the reaction, potassium permanganate undergoes an oxidation reaction by losing oxygen atoms.

At the same time, the reduction of oxygen atoms leads to a decrease in the oxidation state from +7 to +4.

This decomposition reaction occurs at the temperature of Takamori and is usually performed in a laboratory or demonstration. The oxygen produced by potassium permanganate when heated aids in combustion reactions and is often used to ignite combustibles, accelerate combustion, or create special effects such as fire and sparks. The reaction of potassium permanganate heating will also be accompanied by a significant purple fading, which is a significant feature of the potassium megamanganate decomposition reaction in early spring.

Experiments on the pyrolysis of potassium permanganate are often used in chemistry teaching and demonstrations. This reaction not only demonstrates the characteristics of the redox reaction, but also observes the formation of the product, the release of oxygen, and the change in color, which brings a visual appeal to the experimental effect.

Properties and applications of potassium permanganate

1. Oxidant properties: potassium permanganate is a strong oxidant that can carry out oxidation reactions with other substances. In laboratories and industry, potassium permanganate is commonly used for oxidizing organic matter, removing organic matter from wastewater, and disinfection, among other things.

2. Purple crystal: potassium permanganate is a purple-black crystal with a bright purple color. This feature makes potassium permanganate widely used in chemical experiments and demonstrations, and the purple color of solutions and solids can be observed, which brings visual appeal to the experimental effect.

3. Disinfectants and bleach: due to its strong oxidizing properties, potassium permanganate is often used as disinfectant and bleach. In water treatment, potassium permanganate can destroy microorganisms and organic matter in water, and remove odors and colored substances from sewage.

Potassium permanganate (chemical formula: KMNO4) is a strong oxidizing agent that undergoes a decomposition reaction when heated. The products of the decomposition reaction are mainly oxygen and manganese oxide (mnO2). The following is the chemical equation for the heating of potassium permanganate:

2 kmno4(s) →k2mno4(s) +mno2(s) +o2(g)

In this reaction, potassium permanganate (KMno4) is heated and decomposed into three products: manganese oxide (mnO2), potassium manganate dioxide (K2mnO4) and oxygen (O2). Manganese oxide (Mno2) and potassium manganate dioxide (K2Mno4) are by-products, while oxygen (O2) is the main product, which is released in the form of gas. It is an exothermic reaction and the reaction releases energy because the total energy of the product is lower than the total energy of the reactants.

Extension: Potassium permanganate (KMNO4) is a purple Yufu color crystal, which is commonly used as an oxidant and disinfectant in chemical experiments and industrial production. When heated, potassium permanganate undergoes a decomposition reaction to produce oxygen (O2) and manganese oxide (Mno2).

This reaction is exothermic anti-balancing, also known as thermal decomposition reaction.

The thermal decomposition reaction of potassium permanganate is an important experimental phenomenon and is often used to demonstrate the production of oxygen. When potassium permanganate is heated, oxygen bubbles begin to form, and the purple solution gradually fades. When manganese oxide (mnO2) is produced, it precipitates in solution, while oxygen is released in the form of bubbles.

In addition, the thermal decomposition reaction of potassium permanganate can also be used to prepare oxygen, which is useful for certain experiments or applications where pure oxygen is required. However, as potassium permanganate is a strong oxidizing agent, care needs to be taken to avoid contact with flammable substances or organic matter that could cause a fire or**. In laboratories or industrial sites, handling must be carried out in accordance with safe operating procedures.

Potassium permanganate. Heating decomposes into oxygen. Oxygen (oxygen), chemical formula O2. Chemical formula: colorless and odorless gas pin cluster, oxygen element.

The most common elemental form. Melting point, boiling point -183 . Not easily soluble in water, about 30ml of oxygen is dissolved in 1L of water.

Potassiumpermanganate is a black-purple, elongated prismatic crystal or granule with a blue metallic luster; Odorless; It is easy to contact with some organic matter or aerobic deficient cherry caravirus, which is easy to occur, soluble in water, lye, and slightly soluble in methanol.

Acetone, sulfuric acid, the molecular formula is KMNO4, and the molecular weight is. The melting point is 240 °C, which is stable, but contact with flammable materials may cause disasters. Substances to avoid include reducing agents, strong acids, organic materials, flammable materials, peroxides, alcohols, and chemically reactive metals.