The alcoholic solution could suppress the reaction. For example, the reaction is CH3CH2Br2 + H2O → CH3CH20H + Brr, which is a irreversible reaction. When alcohol was present (for example, in an alcohol solution, alcohol was the product of the reaction), according to the principle of chemical equilibrium, increasing the concentration of the product would shift the equilibrium in the direction of the product, thus reducing the positive reaction rate and thus suppressing the effect of decomposition. It wasn't that the alcohol solution didn't react with the reaction, but that the reaction was affected by the shift of chemical equilibrium. Read more exciting novels for free
Bordeaux mixture was made of copper sulfuric acid solution and lime milk in a certain ratio. Copper sulfuric acid (CuSO2) and calcium hydrogen dioxide (CaSO2) would react. The reaction equation was CuSO2 + CaSO2 = CuSO2 + CaSO2. The resulting copper hydrogen dioxide (CuSO2) and calcium sulfuric acid (CaSO2) were the components of Bordeaux mixture, so there would be a reaction between the components. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Degradable plastic's decomposition process involves a variety of reaction types, including decomposition reactions. The main principles of degrading plastic were biochemistry, photodecomposition, photo-biochemistry, water decomposition, etc. Biodecomposition was under the effect of microorganisms. The plastic could be completely decomposed into low-molecular compounds. In this process, the high molecular chain was broken and converted into low-molecular-weight compounds, which could be seen as a decomposition reaction. Photodegrading is in the photodegrading agent (An organic compound with a double bond that connects metal elements) Under sunlight, it forms a biochemical change, forming a free radical compound, which is transferred to the hydrogen on the molecular chain of the compound, causing the molecular chain to break, thus completing the decomposition of the compound. The process of molecular chain breaking is a decomposition reaction. Photo-biochemistry has both the functions of photodecomposition and biochemistry. The process of photo-decomposition and biochemistry to break the high molecular chain and transform it into a low molecular weight compound also involves decomposition reactions. Water-degrading was the use of water-absorbing substances (containing waterproof groups) in the consumable plastic. When it encountered water, it dissolved. The process of dissolving from a large molecular to a small molecular could also be regarded as a decomposition reaction. In summary, the decomposition process of the consumable plastic includes a decomposition reaction. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction equation for aluminum and iron chloride-based solution is 2Al+3FeCl2 = 2AlCl2 + 3Fe2. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Formalide and the solution of soda would react, and the reaction equation was: 2HHamster + NaOx = HCOONa + CH30H. This was a disproportionate reaction. During the reaction, the Formalide would undergo its own oxido-reduction reaction. Part of it would be oxided to become Na-Formate, and the other part would be reduced to carbinol. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Under normal conditions, SiO2 can react with a strong base solution. For example, the chemical equation for reacting with a solution of soda ash is SiO2 + 2NaOx = Na <2> SiO2 + H <2> O. The reaction of the acidic dioxide SiO2 with a base can produce a sulfuric acid ion. However, the reaction between SiO2 and the solid state of NaOx (or the solid state of KhOx) would only occur under strong heat. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Heat will promote the decomposition of the potash. The reaction equation for the decomposition of potash was: CO32- + H2O Oh-+ HCO3-, HCO3-+ H2O Oh-+ H2CO3. The decomposition reaction was an heat absorbing reaction. According to Le Chatelier's principle, when the temperature was raised, the equilibrium would move in the direction of heat absorption. Therefore, heating would accelerate the decomposition of potash. However, it was wrong to say that there was no reaction. During the heating process, although there was the formation of potassium hydrogen carbonateand potassium hydrogen, the two would react and re-generate the potassium carbonate. Therefore, although it seemed that there was no change in the potassium carbonatein the end, in fact, the fermentation reaction had taken place. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
From a microscopic point of view, when a solute was dissolved, the molecules or ions of the solute would spread into the water and be evenly dispersed among the water molecules. This allowed the molecules of the two substances to come into contact with each other more fully during the chemical reaction, so the reaction was faster. From the perspective of contact area, the solution was a uniform and stable mixture. In the solution, the contact area of the two substances was large, and the chemical reaction rate was fast. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
According to chemical knowledge, metals such as zincate (Zn) could react with hci, and the reaction equation was Zn +2hci = znci <2>+ H <2>. For NaCl solution, because of the strong mobility of the metal, it could not react with NaCl solution through a displacement reaction. However, metals such as metallic magnesium (mn) could react with hci but not NaCl. In addition, according to the information provided, elemental iron can react with strong acid, and as a strong acid, it can react with acid (FeCl2 + H2), but not with NaCl2. In addition, as mentioned in Material 3, C powder (non-metallic elemental substance) can be identified by strong acid, which also means that C powder does not react with HQ. In summary, the elemental substances that could react with HQ were metal elemental substances such as iron, while the NaCl-solution did not react with many elemental substances. The elemental substances that could react with HQ might not react with the NaCl-solution. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Chromium-copper sulfuric acid solution can react, and the chemical equation of the reaction is 2Cr +3CuSO4 == Cr2(SO4)3 + 3Cu. In this reaction, the Chromium-copper solution is oxided to +3. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
One could judge whether the metal could react with the solution from the following aspects: 1. ** According to the order of metal activity **: In a salt solution, a metal with strong activity (except for potassium, calcium, and calcium) can replace the metal in the salt solution corresponding to a metal with weak activity. For example, since the mobility of the metal was stronger than that of copper, the metal could react with copper sulfuric acid solution. 2. ** Observing reaction phenomenon **: - When a metal reacted with an acid, under the same conditions, the intensity of the bubble could be observed to determine the strength of the metal's activity. The more intense the bubble, the stronger the metal's activity, and thus the reaction could be judged. For example, the reaction between the two metals was more intense than the reaction between iron and diluted sulfuric acid, which meant that the mobility of the two metals was stronger than that of iron, and they could both react with diluted sulfuric acid. - When the metal reacted with the salt solution, it was to see if there were any new metal precipitations. If iron was put into a copper sulfuric acid solution, red copper would be seen on the surface of the iron, indicating that iron could react with copper sulfuric acid solution. 3. ** Calculating according to the chemical equation **: Theoretically calculate the excess amount according to the equation to see if the reaction is complete. If there is still metal residue in the reaction vessel, it is excessive metal. If the metal is completely reacted, test the solution with a pH-test paper to see if the test paper changes color. If the test paper changes color, it is excessive acid. In the actual operation process, it was generally controlled by humans to make the metal excessive, so that a purer solution could be obtained and the solution and metal could be easily separated. However, this method was more of a theoretical analysis in junior high school, and the actual operation was relatively complicated. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>