Diagram Analysis of Vulcanization Reaction
The principle of rubber curing was to heat a mixture of rubber and sulfur or other curing agents, so that the sulfur reacted with the double bonds in the rubber to form a cross-linked structure. During the operation of the flat-plate curing machine, the hot plate raises the temperature of the rubber compound and causes the rubber molecules to cross-link. Its structure changes from a linear structure to a net-shaped structure. This process can obtain products with certain physical and mechanical properties, but the rubber compound will begin to soften after being heated. At the same time, the moisture and volatile substances in the rubber compound will be vaporized. From a microscopic point of view, the rubber curing system had its own cross-linking mechanism. Peroxides were compounds containing O-O bonds. This peroxidic bond broke down when heated to produce free radical (the breaking of this bond was called homolytic cleavage because the two electrons in the bond were separated). This free radical had a high reaction activity and was the driving force behind the cross-linking of the compound. Peroxides undergo homolytic cleavage, forming two alkoxy free radical, which takes hydrogen atoms from the chain of the compound. The free radical of the two adjacent chains combine to form a carbon-carbon bond, which is an important feature of the cross-linking of peroxides. In these three steps, the one that determined the speed was the homolitic cleavage of the peroxide-based molecules, which usually took a few seconds to a few minutes (thermal dispersion was usually an important factor). After the formation of the highly active free radical, the next step of the reaction could be completed in a few seconds or even less. Read more exciting novels for free
Analysis of the reaction process diagram of reducing hydrogen and methyruvic acid
In the process of oxygen free breathing, the reduction of hydrogen and the reaction of Ruvic acid could produce actic acid. In addition, the reaction of Ruvic acid with the reduction of hydrogen could produce alcohol, but not Ruvic acid. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Diagram of the Inhibition Reaction
The principle of the inhibition reaction can be divided into competitive inhibition and non-competitive inhibition: 1. ** competitive inhibition **: A competitive inhibition agent will compete with the base for the active site of the protein, thereby suppressing the activity of the protein. In this case, both the initiator and the reagent could bind to the active site of the reagent. Due to the existence of the initiator, the chances of binding the reagent to the reagent were reduced, resulting in a decrease in the rate of the reaction. 2. ** Non-competitive Inhibition **: A non-competitive inhibition agent will bind to a site other than the active site of the protein, thereby suppressing the activity of the protein. This binding method changed the structure of the protein, which reduced the affinity of the active center of the protein to the protein. Even if the concentration of the protein increased, the reaction rate of the protein would not increase. For example, in the pesticide residue detection method, the target pesticide's inhibition of a specific reagent was an inhibition reaction. The specific reagent could catalyze the conversion of the reagent into a reagent when there was no pesticide. If the test sample contained the target pesticide, the pesticide would interact with the reagent to inhibit the activity of the reagent, thereby indirectly determining the level of pesticide residue in the sample. Also, in terms of whiteness, 4 -Butylated Resorcinol (577) mainly achieved whiteness and freckles by suppressing the activity of "Tyrosinase" and "Trp - 1." The inhibition of "Tyrosinase" may involve the principle of competitive or non-competitive inhibition. When constructing a nanoase sensor array to detect substances, for example, using 2D-MOF nanoase to detect phosphorus, the inhibition of phosphorus on the activity of 2D-MOF peroxide-like was also an inhibition reaction. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Reaction Diagram of Alkane and Halogen
There were several reactions between the two: 1. ** Substitute Halogenation **: - ** Substituted Halogenation on Aromatic Ring **: It is suitable for aromatic compounds. During the reaction, the hydrogen atom on the aromatic ring is replaced by a halo atom. - ** Aromatic ring side chain and fatty carbon substitution: For aromatic ring side chain and fatty carbon, the hydrogen atom in the structure can be replaced by a halo atom. Among these substitution and substitution, chloride-bromination was more common. 2. ** addition reaction **: An addition reaction between an unsatured carbon (such as a carbon-carbon double bond or a carbon-carbon triple bond) and a single substance such as a halo, hydrogen, etc., thereby introducing a halo atom into the unsatured carbon molecules to form a halo carbon. For example, when an alkene reacted with a single substance, the carbon-carbon double bond would be broken, and two halo atoms would be added to two carbon atoms. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Reaction Diagram of Oxidants and Reductants
When an oxidiser and a reducing agent react, the following relationship exists: the oxidiser obtains electrons, and the valency of the elements contained in it is reduced, resulting in a reduction reaction. The oxidiser itself is reduced to produce a reduction product; the reducing agent loses electrons, and the valency of the elements contained in it increases, resulting in an oxidiser reaction. The oxidiser itself is oxided to produce an oxidiser product. It could be simply represented by the following graph: |reactant| reaction type| Electronic gain and loss| change in valency| product| |----|----|----|----|----| |oxidizing agent| reduction reaction| de electronics| lower| reduzate| |reducing agent| oxidizing reaction| betatopic| rise| oxidative product| For example, in the reaction of burning carbon in oxygen (C + O ^== CO ^, ignition), carbon C is a reducing agent. It loses electrons, and its valency increases from 0 to +4, and is then oxided to carbon dioxide (as an oxided product). As an oxidiser, oxygen O ^is an oxidiser, and it gains electrons. Its valency decreases from 0 to-2, and it is reduced to oxygen in carbon dioxide (as a reduced product). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Analysis of Portrait Photographic Diagram
There are many composition structures in portrait photography. The following is your analysis: 1. * * Simple portrait composition ** - [Close-up and Chest Portrait (1): Capture the upper or lower part of the chest. The focus is on showing the expression and demeanor of the character. Pay special attention to the angle of the face when shooting.] - * * Half-body Portrait (2)**: The image was captured above the hip bone. In addition to the expression and facial angle, the position of the arm also needed to be taken into consideration. - * * Seven clones (upper body, 3)**: Cut off the upper part of the knee, and design a beautiful posture for the thigh, upper body, and arms. - * * Nine Separations (4)**: Capture the upper part of the ankle. It is usually used when it is not suitable to take a full-body photo. It can be used to hide the actual height. - [Full-body Portrait (5): Arrange the position of each joint from the feet up. Every detail of the whole body must be considered.] - * * Landscape Portrait (6)**: It is a portrait with an environment or background. In addition to meeting the above requirements for a simple portrait composition, it also needs to consider the environmental background factors. Exterior, documentary photography, news photography, and other compositions mostly belong to this category. The composition methods are more complicated. - * * Basic rules **: Joints (such as knee joints, elbow joints, fingers, etc.) and overall organs (such as chest, buttocks, etc.) cannot be cut in the middle. In 90% of portrait compositions, the space above the head of the character should be larger than the space in front of the feet, and the space in front of the feet should be as small as possible. 2. * * Center composition ** - [Version 1.0: Equalized Symmetries][Commonly used for shooting ancient buildings and portraits.] Usually, the model's left and right hands and legs had to move in unison to achieve left and right symmetrical movements. It was also suitable for taking pictures of people's backs, but it required a simple background. When there is a horizontal line or horizon in the background of the photo, it is necessary to avoid "crossing" the important parts of the model's body. You can weaken the lines through illusory processing or avoid these lines when framing. The middle composition could also be shot in a symmetrical manner, using the reflection images of the street after the rain, the square that had been sprinkled with water, and the shiny floor. - * * Version 2.0: Large areas are symmetrical, small areas are not symmetrical **: On the basis of maintaining the large areas of symmetrical, the details can be symmetrical. For example, the model's face was facing left and the skirt was floating to the right, or the model and the props (such as fans) were used to balance each other to make the photo vivid and not stiff. The middle composition did not mean that the composition was absolutely symmetrical. When shooting a portrait in a natural environment, the model's movements did not have to be exactly the same. 3. Diagonal composition: The two opposite corners are connected into a line and extend, using this as the basis for composition. 4. * * Nine Palace Box: Divide the picture into nine parts, and the character is located at the intersection of the four parts as the better portrait position. 5. * * Triangle composition **: Usually used when shooting while sitting, the portrait poses in a triangular shape. 6. [Close-up composition (incomplete composition)]: It was more commonly used for close-up portraits. 7. * * frame composition **: Clever use of the frame structures such as the doors and windows around you to create the interaction between the character and the frame. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Sulfur and Metal Reaction Formula and Phenomenon Diagram
The following is a summary of the equations and phenomena of the reaction between sulfur and metals: 1. ** Sulfur and Iron Reaction ** - The equation is: FeS ${stack}{triangle}{=}=}$ FeS (Iron Sulphide, dark brown) - [Phenomenon: Iron powder and sulfur powder are mixed and heated to red heat. The reaction produces a black solid that releases a lot of heat.] 2. ** Sulfur and Copper Reaction ** - The equation: 2Cu + S $\stacking rel {\triangle}{=\!=}$ Copper Sulfur (black) - [Phenomenon: The reaction produces a black solid.] 3. ** Sulfur and mercury react ** - Formula: Mercury + S = HgS (Mercury Sulphide, black) - [Phenomenon: The reaction produces a black solid.] In general, when sulfur reacted with metals, sulfur showed its oxidisation, while metals showed its reduction. The reaction formed a black solid. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Analysis of the relationship diagram of criminal psychology novels
The following is an analysis of the relationship between the characters in some criminal psychology novels: ** I. Criminal Psychology: A Maze of Memories ** 1. ** Li Zhenfeng ** - They were relatives of the deceased who was sealed in the pipe wall. This relationship became an important clue and the starting point of suspense in the case. - He and Anton were partners in the investigation of cases, such as the discovery of remains in the heating pipe and the subsequent murder of pregnant women in the dormitory area of the rolling mill. - He had a working relationship with the forensic doctor, Zhao Xiaonan. Zhao Xiaonan examined the remains in the case and came to a key conclusion. 2. ** Murderer and victim relationship ** - In the case of the murder of a pregnant woman in the dormitory area of the rolling mill, the murderer and the deceased Shen Jia were in a relationship of harm and murder. The murderer brutally killed the pregnant woman and took out the fetus. He also left a key and a mobile phone with a Mickey Mouse pendant at the scene. These items linked many unsolved cases. ** 2. Criminal Psychology (by Chang Er)** 1. Xing Conglian and Lin Chen - The two of them were lovers. They met because of a serial case and were partners at work. Their relationship gradually warmed up as they experienced various cases. - Xing Conglian was born into a wealthy family. He was the only heir to the number one Chinese family and the founder of the international Gatekeeper organization. He showed strong leadership skills in his work, while Lin Chen was a psychologist. They cooperated with each other during the investigation process. 2. ** Dynasty, Xing Conglian, Lin Chen ** - Wang Chao was adopted and nurtured by Xing Cong Company, and under the leadership of Xing Cong Company, he participated in the investigation of the case. - He had a close relationship with Lin Chen and was concerned about Lin Chen's mental state. He would ask Xing Conglian to take care of Lin Chen. ** 3. Crazy Heart ** 1. ** Double Strong Bamboo Horse Male Lead and Person in Case ** - As a police officer, the hero of the double-strong childhood sweetheart was in an opposing relationship with many criminal personalities with distorted psychology in the book (such as girls who liked to smell bad, antisocial personalities, crazy teachers who advised people to commit suicide, etc.). He was responsible for bringing these criminals to justice. - In a complicated case, there were 158 people involved in the investigation and investigation, arrest and arrest, and so on. He solved the case through the complicated network of people. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Analysis of the Dehydrating Reaction of Alcohol
There are many factors that affect the alcohol dehydration reaction. The reaction temperature had a significant effect on the alcohol dehydration reaction. Generally speaking, the higher the temperature, the more favorable it was for the formation of ethene, and the lower the temperature, the easier it was for ether to be formed. When the reaction temperature reached 120 ° C, the decrease in the reaction was probably due to the formation of ether from the dehydration of alcohol. Moreover, studies had shown that the reaction temperature for the large production of ethene should be maintained above 200 ° C. Otherwise, the alcohol would undergo molecular dehydration to form ether, thereby reducing the ethene's selectively. The catalyst could also affect the alcohol dehydration reaction. For example, in industrial production, the traditional concentrated sulfuric acid liquid phase was used for the dehydration of alcohol to produce ethene or ether, but there were equipment corrosion and environmental pollution problems. Therefore, many studies were currently focused on the development of new solid acid catalyst, such as ZSM - 5 molecular sieve, NKC -03a catalyst, al2o3 catalyst, etc. In some studies, different nano-composite catalyst also showed different selectively. For example, in the nitrogen carrier gas, the dehydration products (ethene and ether) were used at 500°C with the chromium-aluminum dioxide nano-composite material, and the conversion rate of alcohol was 74%. In the presence of an oxygen carrier gas, the main product was actually the esh, with a 38.5% selectively. The hematite-aluminum dioxide nano-composite emphasized the formation trend of the dehydration compound. At 500°C, the oxygen carrier gas (esh) had a 42% selectively, while the dehydrated product had a 32.8% selectively. In addition, in some special catalyst systems, such as the W03- x@C system where oxygen defects (OV) and carbon coating (PL) were introduced into W03, it was used for full-spectrum photocatalysis of alcohol dehydration. OV was used as a solid acid center, which was the key to using solar energy to catalyze the dehydration of alcohol to C2H4 through the photothermal process. In this system, the C2H4 selectively could reach 98.1%, and the conversion rate of C2H50H was 88%. There was also a catalyst system such as the platinum/Al2O3 @ TiAl-based catalyst system, which used a relay catalyst strategy of dehydration of alcohol to form ethene and then ethene to be oxided. First, the dehydration of alcohol by Al2O3, which was formed on the surface of the TiAl-based alloy without the deposit of platinum, was used. Due to the low disintegration energy of the C = C bond on the surface of the platinum catalyst (6.4 kcal/mole), ethene could be completely oxided on the surface of the platinum catalyst, thus achieving a special selective control. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Diagram of the kinetic change of sulfur dioxide to sulfuric acid reaction
You just gave it the name " Diagram of the kinetic change of sulfur dioxide to sulfuric acid reaction ". There's no more content. I can't reorganize it according to the requirements. You can add some information such as the characteristics of this chart and the relevant reaction conditions. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What is the principle diagram of the phenomenon of mercury and oxygen heating reaction?
The reaction between mercury and oxygen was that the silver-white liquid mercury turned into red mercuric acid powder. Reaction principle: 2 Mercury +O 2 = Heat = 2HgO. Mercury atoms (Mercury) and oxygen molecules (O <2>) were heated. Mercury atoms lost electrons and were oxided, while oxygen molecules gained electrons and were reduced, thus combining to form a compound called mercury dioxide (HgO). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>