Rearrangement reaction, amount of reagent used
Different rearrangements required different amounts of the catalyst. For example, in the synthesis reaction of erythromyrin A{E}}, the amount of alcohol used was 1ml/1 g of erythromyrin A thianate; in the liquid-phase rearranged reaction of 2,102 epoxipinane, the amount of the catalyst used would affect the rearranged reaction, but the specific amount was not specified; in the use of the Curtius rearranged reaction, the amount of the catalyst used was not specified; in the Hofmann rearranged reaction, when water was used as the catalyst, the amount of water was not specified. Therefore, the amount of the rearranged reaction's reagent used varied according to the specific type of the rearranged reaction. Read more exciting novels for free
Reaction of Tolens 'reagent with Formalin
Torrens 'reagent was a solution of silver, and its chemical formula was [(AgNH3) 2) Ox]. The reaction equation between Torrens reagent and Formalin is (HCHO +4(Ag(NH_3)_2)OH---(NH_4)_2CO_3 + 4Ag↓+ 6NH_3 +2H_2O\) The reaction would produce a silver mirror phenomenon. This was because the formalin had a reducing property. During the reaction, the formalin was oxided, and the silver ions in the Torrens reagent were reduced to silver, which was deposited on the wall of the glass reaction vessel to form a silver mirror. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Reaction of Fehling's reagent with an aldo
The reaction between Fehling's reagent and an aldo will produce a brick-red copper dioxide (Cu2 O). During the reaction, the color of the solution may gradually change from blue to green to yellow to red. If the reaction is fast, the red deposit can be directly observed. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
A product of the reaction of alcohol with a Grignard reagent.
The alcohol reacted with the Grignard reagent to give the alkyls and the alkoxypidium. The reaction formula is RMengX + ROH → RHmX + ROMengX, where RMengX is a Grignard reagent, R is an fatty or aromatic radical, and X is a halo (Cl-I, Br-I). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction between urine and biuret reagent before exercise
There was no protein in urine, so there was no purple reaction between urine and biuret reagent before exercise. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Reaction equation of iron with a sufficient amount or a small amount of Cl2
The reaction equation between iron and Cl2 was: 2Fe +3Cl2 = 2FeCl2 (ignition). The reaction was independent of the amount of Cl2. The reaction equation was the same regardless of whether there was a sufficient amount or a small amount of Cl2. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction between the amount of hydrogen sulfuric acid and the amount of substances such as soda
When the amount of substances such as the reaction of the hydrogen sulfuric acid (<anno data-annotation-id ="cd000004 - 4c04 - 4c00-a110-a11111111004"> NHSO4 </anno>) and the like react, the reaction equation is: <anno data-annotation-id ="3cd000 - 4c00 - 4c00-a11111100000"> NHSO4 + NH3 </anno>="aHSO4 + NH2 + O </anno>. During the reaction process, the hydrogen ion in the hydrogen sulfuric acid first reacted with the lithium hydrogen. Since the amount of the two substances was equal, the lithium ion did not participate in the reaction, forming the hydrogen sulfuric acid and the lithium hydrogen. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What is the reaction to taking a large amount of Aspirin?
Taking a large amount of Aspirin may cause the following reactions: 1. " Intestinal reactions: Including damage to the digestive tract, increased risk of bleeding, nausea, vomiting, severe stomach pain, possible bloody or tarry feces, vomiting bloody or coffee-like substances, and severe cases of bleeding or ulcers in the digestive tract. 2. Central nervous system abnormalities: Reversible ringing, hearing loss, breathlessness, lethargy, coma, irregular heartbeat, low blood pressure, etc. may occur. In severe cases, it may lead to lung edema. 3. Allergy reaction: A small number of patients may develop hives, antagononeurotic edema, and allergic shock. Some patients with asthma may induce asthma after taking it, which is called "Aspirin Asthma". 4. Abnormal liver and kidney function: Aspirin is digested by the liver and kidneys. Taking a large amount of it will cause damage to liver and kidney function, but most of the damage is irreversible and can be gradually recovered after stopping the drug. 5. Salicolic acid reaction: Headache, dizziness, nausea, vomiting, ringing in the ears, and hearing loss may occur when the dosage is too large. 6. Prolonged Blood Coagulation Time: Affects the Blood Coagulation Function. 7. Increase in blood uric acid: Small doses may cause an increase in blood uric acid, and the risk may be higher when taking large doses. 8. Ryoi-Yuri syndrome: Although it is occasionally seen in children when used to treat fever caused by viral infection, taking large amounts of Aspirin may also increase this risk. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Image of the reaction of the same amount of metal and acid
1. ** Reaction of the same amount of metal with sufficient acid (horizontal coordinate is reaction time)** - Reaction rate relationship: When the same mass of Mn, and Mn react with a sufficient amount of the same acid of the same mass and concentration, the reaction rate relationship is: Mn> Mn. This was because under the conditions of a certain temperature, metal particle size, and solute mass fraction of the diluted acid solution, the stronger the mobility of the metal, the faster the reaction to produce hydrogen. - The mass relationship of the final hydrogen produced: The mass relationship of the final hydrogen produced is: 2. ** Reaction of the same amount of metal with sufficient acid (the horizontal coordinate is the mass of acid)** - When the same mass of Mn, and Mn reacted with a sufficient amount of sulfuric acid of the same mass and concentration, and the metals completely reacted, the mass relationship of the final hydrogen produced was: Mn> Mn. 3. ** Reaction of an equal amount of acid with a sufficient amount of metal (horizontal coordinate is reaction time)** - Reaction rate relationship: When the same acid with the same mass and concentration and sufficient amount of Mn, and Mn react sufficiently, the reaction rate relationship of hydrogen is: Mn> Mn. - The mass relationship of the final hydrogen produced: The mass relationship of the final hydrogen produced is: 4. ** Reaction of an equal amount of acid with a sufficient amount of metal (the horizontal coordinate is the mass of the metal)** - The mass relationship of the final hydrogen produced: When the same acid with the same mass and concentration and a sufficient amount of Mn, and Mn react sufficiently, the mass relationship of the final hydrogen produced is: Mn = Mn. When analyzing the image problem of the reaction between metal and acid, it was necessary to pay attention to the specific meaning of the ordinate and ordinate in the image. Generally, the ordinate was the amount of hydrogen produced, and the ordinate was usually time/s or the mass of acid consumed/g or the mass of metal consumed/g. At the same time, it was necessary to judge the amount of metal and acid. The amount of hydrogen produced in the reaction was determined by the amount of acid in the reaction. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The equation of the reaction between a small amount of bisulfuric acid and a sufficient amount of lithium hydrogen.
The chemical equation of the reaction between a small amount of bisulfuric acid and a sufficient amount of lithium hydrogen is: $NaHSO4 +Ba(Ox) 2 =H_{2}O+ NaOx + BaSO4 < The principle of the reaction was that the hydrogen ions and the sulfuric acid ions in the bisulfuric acid reacted with the hydrogen ions and the sulfuric acid ions in the lithium hydrogen. Due to the small amount of the bisulfuric acid, the hydrogen ions and the sulfuric acid ions contained in it completely reacted in a ratio of 1:1 to produce water, the precipitations of the lithium hydrogen and the lithium 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>