The reaction of the dicarbonic acid after being heated was more complicated, and it would have different reactions affected by the relative position of the two carboxy groups. Some will lose water, some will lose starch, and some will lose both water and starch. The details were as follows: 1. Oxalic acid and malonic acid and their alkyls: easy to lose the ester. 2. Butanediic acid and glutanic acid and their alkyls: Butanediic acid loses its water when heated to about 300 ° C to form butanediic acid; glutanediic acid loses its water when heated to about 300 ° C to form glutanediic acid, which is not easy to undergo decylating reaction. 3. Hexanic acid and pimelic acid and their alkyls: When heated to about 300 ° C, they lose both the acid and the water. Hexanic acid can be heated to form Cyclopentane. 4. When the dicarbonic acid above the pimelic acid is heated, it loses water between the molecules to form a high-molecular acid ether. In addition, in the heating reaction of the dicarbonic acid, if the water loss reaction occurs, it may be necessary to add a water loss agent, such as Ag2O, P2O2, CHCOCl2,(CHCO2) 2O, POCl2, etc.; If the decarbonic acid reaction occurs, it may be necessary to add a base, such as Ba(Ox) 2, Ca2 (Ox) 2, etc. Read more exciting novels for free
Oxalic acid was a dibasic acid. The two groups of the acid could be decarboxylated at a lower temperature to form formated acid and CO2. At a higher temperature, formated acid would undergo a dehydration reaction to form CO2 and water. The reaction equation was as follows: At lower temperatures: <<<p>></p>H - COOH + CO_2↑\); At higher temperatures: <br><br><br>> br><br>> br></br>>CO_2↑+ CO↑+ H_2O\)。 After the dibasic acid was heated, due to the different positions of the two carboxy groups, different chemical reactions such as water loss, loss of esh, or loss of esh at the same time would occur. At 300 ° C, the substituted dibasic acid could also undergo the above reactions. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
It was too general to say that the weak acid reaction was either heat absorbing or heat releasing. For example, the weak acid's ionisation process was heat absorbing. This was because the weak acid needed to overcome the effect of chemical bonds to absorb energy when it was ionised. However, if a weak acid is involved in the neutralizing reaction, since the weak acid is not completely ionised, it absorbs heat during the neutralizing reaction at the same time. Therefore, the heat released by the neutralizing reaction of the weak acid and the strong base (or strong acid) is less than the neutralizing heat of the strong acid and strong base neutralizing reaction.(The neutralizing reaction of a diluted solution of a strong acid and base: H+(aq)+Oh-(aq) H2O(l); AH = -57.3kJ/mole), but the whole reaction was still an exothermic reaction, but the heat released was less than that of a strong acid and base neutralizing reaction. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction between the sulfuric acid and the sulfuric acid was an exothermic reaction. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction between the two substances would produce a mixture of carbon dioxide and water. This reaction helped maintain the stability of the blood's pH. It had little effect on the blood's pH. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Under normal circumstances, the reaction between the two could not be carried out directly. Because the lone pair of electrons of the oxygen of the alcoholic group was coupled with the aromatic ring, the reaction activity was very weak, and it could not be used to catalyze the ester reaction with the acid. To synthesize the ester, the reaction of an acid acid or an acid ether with the ether was usually done. For example, the reaction between the ether and the ether was: C6H50H +(CH3CO) 2O = CH3COOC6H5 + CH3COON. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Glycerol (Glycerol) would react with the hydrogen difluoridation. From the chemical point of view, the acid was an acidic substance, which would produce hydrogen ions in the water solution. Glycerol contains a-OH group and has a certain chemical activity. When the two met, the hydrogen ions could interact with the hydrogen group in the glycerine. For example, an alkali-base neutralizing reaction or other substitution reactions might occur. However, the specific situation and degree of the reaction would also be affected by the reaction conditions (such as temperature, concentration, etc.). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction between the two was the reaction between the two, and the equation was: [2Na_{2} O_{2}+2H_2} O = 4NaOx + O_{2}^. The reaction phenomenon was that a large number of bubbles were produced, and the gas produced could reignite the wooden strips with sparks. The temperature of the test tube wall increased, and the solution first turned red and then faded (if the phenylethylene was added to the water in advance). This was because the reaction generated oxygen and released a lot of heat. The resulting soda ash turned the phenylethanes red, but the soda dioxide was oxidisable and would cause the red solution to fade. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction between the two was carried out in two steps: the first step was to form the first step, and the second step was to further react the first step with the second step to form the second step. With the formation of the sulfuric acid, a eutectic mixture of NH4Cl4, NH4HSO4, and (NH4) 3H (SO4) 2 was formed, making the reaction difficult. Increasing the reaction temperature and prolonging the reaction time were beneficial to increasing the conversion rate of the aminium chloride-like substance and reducing the content of the chloride-like substance in the aminium sulfate-like substance. This reaction has a good application prospect in areas where there is an excess of hydrogen chloride-sulfuric acid and hydrogen chloride-sulfuric acid. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Cyclohexene was added to the acidic solution of sulfuric acid, which would undergo an oxidization reaction. The carbon-carbon double bond would be broken and then be oxided into a starch group. During the reaction, the purple color of the solution of sulfuric acid would disappear. This was because cyclohexene was an aromatic, which had a reducing property. The carbon-carbon double bond in it was easily oxided by the strongly oxidisable, acidic, and acidic potassium Permanganate. When the potassium Permanganate was reduced in the reaction, the Mn (7) ion was reduced to Mn (7) ions of other valences, so the color of the solution became lighter until it disappeared. The reaction equation was: 5C6H10 + 8KMnO4 + 12H2SO4 =5 (HOCC (CH2) 4COON)+4K2SO4 + 8MnSO4 + 12H2O. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
It is easily dissolved in acid. This was determined by its own chemical properties. The specific reaction mechanism may involve the molecular structure of the acid, chemical bonds, and many other factors, but the reference did not give a detailed explanation of the principle of the reaction with the acid. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>