Experimental process of the reaction between the silver solution and the carbolic group
The reaction between silver and an aromatic group (using an example of this) was as follows: 1. ** The preparation of the silver solution: - In a clean test tube, add 1 - 2ml of 2% - 3% silver nitrates solution, then add a drop of 5% solution of soda, and then add 2% diluted aqua solution drop by drop while shaking the test tube, until the initial deposit just dissolved, to produce the silver solution. The reaction equations were: [AgNO3 + NH3·H2O = AgOx + NH4NO3],[AgOx +2NH3·H2O = AgOx +2H2O]. 2. ** Silver Mirror Reaction Operation **: - Add 3 - 5 drops of 40% potassium ether to the silver solution, shake it gently, and then immediately heat the test tube in a water bath at 60 - 70 ° C. - During the heating process, the color of the solution would change from colorless to milky white, dark red, colorless, and finally to silver-white. Then, a bright silver mirror would appear on the inner wall of the test tube. 3. ** Note **: - The solution must be used immediately and must not be left for a long time. Otherwise, it would form a black and explosive silver tri-nitrogen deposit (Ag3N). - The test tube used must be very clean. If the test tube was not clean, most of the restored silver would be loose and grainy, and the bright silver mirror would not be obtained. It can be washed with hot sulfuric acid, 10% NaClO solution, and then rinsed with distilled water. - Do not shake the test tube again when the solution of silver and amine is evenly mixed with the dripped potassium ether. Otherwise, it will form a black, loose silver deposit instead of a bright silver mirror. - The reaction must be heated in a water bath. Do not heat it directly with a flame, or it may explode. During the water bath heating process, do not shake the test tube, nor stir the solution. The water bath temperature should be 60 - 70 ° C. Because the boiling point of jumped ether is low, too high a temperature will cause a large amount of jumped ether to evaporate and the reaction effect will be poor. It is difficult to obtain a bright silver mirror, but only black fine silver particles can be obtained. - The dosage of Zhang Tie's alcohol should not be too much. Read more exciting novels for free
Is there a reaction between the solution of soda and silver nitrates?
The reaction equation of the reaction between the two substances is: AgNO + NaOx = AgOx (white) + NaNO, 2AgOx = AgOx (dark brown, or brown) + HOx. The reaction will first produce white precipitable silver dioxide, which is unstable and further decomposed into dark brown (or brown) silver dioxide and water. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Reaction of the solution with the solution
There were different opinions on whether or not the reaction between the two substances occurred. One view was that silver chloride-soda would react to produce silver-white silver silver precipitations and NaCl2, and the silver-white precipitations could easily be converted to brown silver oxide-soda. The other view was that the reaction could not be carried out because the reaction between base and salt required the salt to be dissolved, while AgCl2 was difficult to dissolve. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The product of the reaction between a carbolic acid and Na
Carboxylic acid reacted with Na to form Na Carboxylate and hydrogen. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Reaction of carbon dioxide and a small amount of carbolic acid
Regardless of whether carbon dioxide was in small or excessive amounts, it would react with the reaction of the acid to form the acid and the acid. The reaction equation was: C6H5- ONa + CO2 + H2O → C6H5- Oh + NaHCO3. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Reaction of Acid and Solution
The reaction of sulfuric acid with different solutions was different: - During the reaction between the solution of sulfuric acid and the solution of the solution of - The acid reacted with rust (mainly composed of iron dioxide), dissolving and removing the rust. After the reaction, the solution turned yellow. - When sulfuric acid reacted with iron trioxid, reddish-brown floccule precipitations were dissolved to form a yellow solution; when sulfuric acid reacted with copper trioxid, blue precipitations were dissolved to form a yellow-green solution; when sulfuric acid reacted with copper dioxide, black solid was dissolved to form a yellow-green solution. - Gas was formed when the acid reacted with the metal, and it reacted with the metal. When the acid reacted with iron, the solution turned light green and released gas. When the acid reacted with aluminum, gas was formed. - When the solution is dropped into a solution (not specified) and vibrated while dropping, it may start to drop without any phenomenon. When a certain substance in the solution is basically transformed into another substance, gas will start to escape continuously (because the composition of the solution is not specified, only one possibility is provided). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Is there a reaction between the solution of the lead and the solution of the lead?
The reaction between the solution of the two metals would result in the formation of the two metals, namely, the sulfuric acid and the sulfuric acid. The color of the solution gradually changed from green to bright blue. The reaction equation was: Mn +2CrCl2 = Mn +2CrCl2, and the ion equation of the reaction was: Mn +2Cr3 === Mn +2Cr2 (because of the order of metal activity: Mn> Mn). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Reaction of Silicate in the Solution of Alkaline
The chemical equation for the reaction between silicon and a solution of soda is: Si +2NaOx + H ^O = Na ^SiOx +2H ^^. In this reaction, water is the oxidiser. Silicate was a chemical element with the chemical symbol Si, while soda was a highly corrosive and highly basic chemical compound with the chemical formula of NaOx. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Reaction of silver and nitrogen
The solution of silver amine was the solution of AgNOH. When it was mixed with the solution of NaOx, the solution of NaOx would cause the balance of the solution of silver amine to shift to the right, forming silver solute. The silver solute would decompose into silver dioxide under the light. The reaction process was (AgNOH) NOH = AgNOH → 2NOH. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
How to adjust the reaction rate of the solution?
The solution reaction rate could be adjusted from the following aspects: 1. ** The nature of the reagent (internal factor)**: This is the main factor that determines the reaction rate. Different substances have different reaction activities, so the reaction rate will also be different. 2. ** Solution Concentration (External Cause)**: Increase the concentration of the reagent, and the reaction rate will increase. 3. ** Temperatures (External Cause)** - As for the irreversible reaction, the positive and reverse reaction rates increased with the increase of temperature, but the increase of the heat absorption reaction rate was greater. 4. ** Pressure (External factor, for reactions involving gases)** - When the other conditions remained unchanged, increasing the pressure would reduce the volume of the gas, increase the concentration, and accelerate the reaction rate. - For a reaction where the volume changes before and after the reaction, the side with a large number of gaseous substances in the equation has a large degree of influence on the reaction rate by the pressure (when the pressure is increased, it increases to a large extent; when the pressure is reduced, it decreases to a large extent). - The reason for the change in pressure and the effect of this change on the concentration of the reaction system should be distinguished to determine the effect on the reaction rate. For example: - At a constant temperature: increase the pressure → decrease the volume → increase the concentration → increase the reaction rate. - At constant temperature and volume: fill in the gas reagent → increase in concentration → increase in rate; fill in the "noble gas" → increase in total pressure, but the partial pressure of each gas remains unchanged, that is, the concentration of each substance remains unchanged, and the reaction rate remains unchanged. - At a constant temperature and pressure: fill in the "noble gas" → increase in volume → decrease in the concentration of each reaction substance → slow down the reaction rate. 5. ** catalyst (external factor)**: The catalyst can reduce the activation energy of the reaction, increase the percentage of activated molecules, and increase the speed of the forward and reverse reactions to the same extent. 6. [Other conditions (external factors): Light, particle size of the reagent, the state of the reagent, and so on can affect the chemical reaction rate.] For example, grinding made the particles of the reagents smaller, increasing the contact area between the reagents, thereby increasing the reaction rate. For some reactions, specific reagents may affect the reaction rate. The state of the reagents (such as solid, liquid, and gaseous) may be different, and the reaction rate may be different. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Reaction of Sulfuric Acid Solution with Esters
Esters can be subjected to a reaction of either acid or base. In an acidic environment, the ester's decomposition was irreversible, and sulfuric acid acted as a catalyst. Although the catalyst participated in the chemical reaction, its mass and chemical properties remained unchanged during the reaction, and it returned to its initial state after the reaction ended. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>