The reaction between salt and base needed to meet the following conditions: 1. As for the reagents, the base and salt involved in the reaction must be dissolved, and the reaction must be carried out in a solution. 2. In terms of products, the products contain an indissolvable base (or salt) or gas. In addition, in the theory of acid and base, the base refers to the ions that are produced in the water solution. In the theory of acid and base, the base refers to the substances that can accept the ions. In the theory of acid and base, the base refers to the electron donor. Salt refers to a type of metal ion or a compound formed by the combination of a metal ion (or a non-metal ion) and an acid radical ion (or a non-metal ion). Read more exciting novels for free
1. ** Condition of the metathesis reaction ** - For acid + base = salt + water (neutralizing reaction), at least one of the acid and base involved in the reaction was easily dissolved in water. - Acid + salt = new acid + new salt. If the salt in the reagent is difficult to dissolve, then the product must be dissolved. The reaction between acid and salt is a metathesis reaction in an aquatic solution. The conditions for the metathesis reaction must be met.(There are precipitations, gas, or water). For example, when limestone (CaCO) is used to produce CO2 in the laboratory, only sulfuric acid can be used, because the CaSOformed by the reaction of CaCOand sulfuric acid is slightly dissolved and will cover the surface of CaCOto prevent the reaction from continuing. It is necessary to master the reaction of weak acid salt (such as Na <anno data-annotation-id ="0000004 - 4445 - 400a-400a-800000005e"> CO2 </anno>, CaCO) with strong acid (HQ, H </anno> SO, HNO), and the reaction to form BaSOand AgCl. - Alkali + salt = new base + new salt. The base and salt participating in the reaction must be water-dissolved, and there must be a hard-to-dissolve substance or a volatile base (NH2·H2 O) in the product. - Salt + salt = two new types of salt. The two types of salt participating in the reaction must be water-dissolved. If one of the products was a hard-to-dissolve salt, the reaction could proceed. 2. ** Reaction conditions of acid and basic oxygen ** - Strong acid (H <2> SO2 <3>, HNO2 <3>, and HC1) can react with all basic oxide-based compounds, while weak acid (H <2> CO2 <3>, H <2> S <3>, etc.) can only react with active metal oxide-based compounds. 3. ** Reaction conditions of acidic oxides and alkalites ** - Under normal conditions, acidic compounds can react with strong base solutions, but SiO2 needs to be heated to react with a solid form of NaOx (or a solid form of KhOx). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Theoretically, the reaction between NaCl2 and CH2CH20H could produce Naethox and sulfuric acid, but under normal circumstances, alcohol and salt would not react. For example, white wine and salt did not react and would not form new substances. In the absence of special conditions such as concentrated sulfuric acid, salt and alcohol would not react directly. Moreover, salt could not be dissolved in alcohol because alcohol was an organic substance and salt was an organic substance. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Dextrose (C H O) does not react with NaCl2. Dextrose was a kind of multi-functional alcohol with a relatively stable chemical structure, and the salt of the salt was composed of the ions Na and Cl2. When the two were put together, no new substance would be formed. It was just a simple mixture. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Silver hydrogen could react with salt. This was a conversion reaction of an indissolvable substance. Since the dissolution of silver chloridewas smaller than that of silver trioxid, the reaction would occur. The reaction equation was: NaCl2 + AgO2 == NaCl2 + AgCl2. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction between the solution of NaCl2 and AgNO3 will produce a white silver salt deposit, which will not turn blue. The reaction equation is: NaCl2 + AgNO2 = NaNO2 + AgCl2. The reaction between the solution of NaCl2 and the solution of AgNO2 will produce a white silver salt deposit. When the solution of NaCl2 is mixed with the colloid of FeCl2, the colloid will coagulate when it meets the solution of the solute, and the silver salt deposit produced is not blue. In addition, there was no reaction between salt and salt, but the reaction between salt and silver would produce silver salt. When salt was added, the white salt would turn into a yellow salt (NaI + AgCi = NaNO + AgI, AgI was a yellow salt), and there would be no blue salt in the whole process. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
1. ** Reaction conditions of metals and acid ** - In the sequence of metal activity, the metal in front of hydrogen can replace the hydrogen in the acid to form hydrogen. - The acid in the reagent could not be an oxiding acid such as HNO3 or concentrated H2SO4. 2. ** Reaction conditions of metals and alkalium **: Generally, active metals (such as aluminum) react with alkalium, such as the reaction of aluminum with a solution of soda. During the reaction, the aluminum must have a certain chemical activity, and the concentration of the alkalium solution must reach a certain concentration (reaction equation: <<2A1>+<2H2O>>=<2NaAlO2>+<3H2O>>>). However, the reaction of common metals with alkalium is relatively rare compared to the reaction of metals with acid. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
When saltpeter and salt were put into water, there was generally no obvious chemical reaction. When the two dissolved in water, they would disintegrate into K, NO, Na, and Ci ions, but there was usually no obvious reaction between these ions. However, under certain conditions, the mixture of nitrates and chlorites would produce a mutual oxidization reaction. The reaction between nitrates and salt usually involved a oxidoreduction process, which could lead to the decomposition of the original salt, forming new nitrates and other products such as water, carbon dioxide, or nitrogen dioxide. As a strong acid, it could react with the positive or negative ions in the salt, replacing the corresponding ions to form new compounds. At the same time, the strong oxidisation of the acid could also oxidisate certain elements in the salt, resulting in the formation of nitrogen dioxide and other oxidisation products. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Not all reactions between acid, base, and salt were metatheses. In junior high school chemistry, the reaction of acid and metal to form salt and hydrogen, such as 2AI +3H ^SO = AI ^(SO)+3H ^^, this reaction is not a metathesis reaction. Alkali reacted with non-metallic compounds to form salt and water, such as 2NaOx + CO2 = Na Chi CO2 + H Chi O, which was also not a metathesis reaction. The reactions of neutralizing acid and base (acid + base = salt + water), acid and salt (acid + salt = new acid + new salt), base and salt (base + salt = new base + new salt), salt and salt (salt + salt = two new salt), and metal oxide-acid (acid + metal oxide-salt + water) were all metathetical reactions. Moreover, the metathesis reaction had to meet certain conditions. The reagent had to be dissolved in water or acid, and the product had to be either one or two of the three substances of precipitations, gas, and water. <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>
The conditions for different organic substances to react with acid and base were different: - When the organic matter is a ether, it can react with a base. - Carboxic acid can react with bases. - In the water solution, the halalocarbon would react with the alkali-like water, and in the alcohol solution, it would react with the alkali-like alcohol. - Esters can be subjected to the reaction of acid or base. Under base conditions, the reaction is slow when not heated, but the reaction is accelerated when heated. Under acid conditions, it is usually diluted acid and the reaction occurs when heated. - An organic compound with both acid and base functional groups (such as an acid, a protein, etc.) can react with both acid and base. - The silver mirror reaction can occur in the presence of organic substances (such as alkyls) that contain " - The dehydration reaction of alcohol required concentrated sulfuric acid as a catalyst and an absorbing agent, and the reaction was carried out under acidic conditions. - Oils and fats are ester substances, which can undergo a water decomposition reaction under acid or base conditions. - The acidic organic matter and the basic organic matter would undergo a neutralizing reaction. The basic organic matter generally had the characteristic group of an amine group, while the acidic organic matter generally contained a Carboxyl group or a alcoholic group. Some of them only had a alcoholic group, but with the acidic group, they could undergo a neutralizing reaction with other substances (acid and base exchange components to form salt and water). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>