The alkali-base reaction could be carried out in a non-liquid system without a solution. In this case, according to the definition of acid and base in the solution system, in any solution, any substance that could increase the same positive ion as the solution was the acid in the solution; any substance that could increase the same negative ion as the solution was the base in the solution. The essence of the alkali-base neutralizing reaction was the interaction between the positive ion and negative ion with the characteristics of the solution to form the solution molecules. However, the specific conditions of the alkali-acid reaction under the condition of no solution may vary depending on the reaction system. For example, in some reactions under the condition of no solution, lowering the temperature can increase the chirpy reaction. Different reagents may also show different alkali-acid reaction characteristics under the condition of no solution. Read more exciting novels for free
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>
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>
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>
The chemical equation of the reaction between acid and indicator: KHIn/(H+)=(In-)/(HIn)=a/(a-c). Using litmus as an example, the equilibrium of the ions was HIn = In- + H+. However, it should be noted that the acid and base indicator will change color when it meets an acidic or basic solution. The actual color change is the acid and base indicator, not the solution itself. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Acid and base reactions can produce carbon dioxide. For example, the reaction of soda ash (Na_{2}CO_{3}) with an acid (such as sulfuric acid,<anno data-annotation-id ="00000000 - 4110 - 4410-a110-a1100111000"> ClCl3 </anno>) will produce carbon dioxide. The reaction equation is <anno data-annotation-id ="2c3cd00 - 4c50 - 4c50 - 4c50 - 9c51100000000"> Na_{2}CO_{3}+2Cl3 + 2Cl3 = 2NaCl4 + H_{2}O+ CO2}</anno></anno>. In the laboratory, diluted sulfuric acid reacted with marble (the main component of calcium dioxide) to produce carbon dioxide. The chemical equation was [CaCO3]+2HQ = CaCl2 + H2O + CO2]. The reaction between edible alkali-based and acid could produce carbon dioxide. When the dough fermented too much and had a sour taste, edible alkali-based could neutralize the sour taste. At the same time, the reaction between alkali-based and acid produced carbon dioxide to make the dough more fluffy and puffed. Baking soda (acidic) could also produce carbon dioxide when it reacted with acidic substances. For example, when white vinegar (acidic) and baking soda were mixed at home, they would react to produce carbon dioxide, which could be used for simple scientific experiments. The carbon dioxide produced by the reaction could make the balloon bulge, and the gas could extinguish the flame. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction between hydrogen cyanic acid and an carbolic acid required a base catalyst. The addition reaction of hydrogen cyanic acid with the addition reactions of the alkyls, the fatty methyls, and the ring ketones with less than 8 carbon atoms required base catalyst conditions. This reaction was a nuclophile addition reaction. Cyanic acid was a polar reagent. One end of the hydrogen atom carried a small amount of positive charge, and the other end of the cyan group carried a small amount of negative charge. In the carbon-oxygen double bond of the aldo group, the oxygen atom carried a partial negative charge, and the carbon atom carried a partial positive charge. During the reaction, the oxygen atom was connected to the hydrogen atom, and the carbon atom was connected to the cyan group. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
1. **二氧化碳与碱的反应** - 二氧化碳能与可溶性碱反应,产物一般是碳酸盐。例如二氧化碳与氢氧化钠反应:当二氧化碳少量时,\(2NaOH+CO_{2}=Na_{2}CO_{3}+H_{2}O\);二氧化碳与氢氧化钙反应\(Ca(OH)_{2}+CO_{2}=CaCO_{3}+H_{2}O\)。不过并不是所有的碱都能和二氧化碳反应,只有可溶性碱能与二氧化碳发生反应。 2. **二氧化碳与酸的反应** - 二氧化碳不与酸反应,从酸碱性角度看,酸和酸不反应,并且二氧化碳既没有强氧化性也没有强还原性,所以和氧化/还原性酸也不反应。 3. **二氧化碳与水的反应** - 二氧化碳遇到水时发生化学变化,产生碳酸,反应方程式为\(CO_{2}+H_{2}O = H_{2}CO_{3}\),但碳酸不稳定,受热易分解,\(H_{2}CO_{3}\triangleq CO_{2}\uparrow+H_{2}O\)。 <a href="/?from=ask_words" style="color:red" target="_blank">点击前往免费阅读更多精彩小说</a>
The reaction between sulfuric acid and base would release a lot of heat, but the reaction itself did not produce toxic substances. However, during the reaction, if the concentration of sulfuric acid is high enough, it is highly corrosive and may cause dangerous situations such as chemical burns. If the reaction is carried out in an uncontrollable environment, the heat generated by the reaction may cause other dangers, such as releasing toxic substances from the surrounding substances or causing the sulfuric acid to evaporate and produce acid mist. Inhaling the acid mist may cause acute poisoning, eye inflammation, burning sensation in the nasal and oral membranes, epistax, gum bleeding, tracheitis, etc. Therefore, the reaction between the acid and the base needed to be carried out in a controlled environment (such as a laboratory). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction of strong acid and strong base generally did not have obvious experimental phenomena (such as settling, bubbles, dissolving and disappearing of indissolvable substances, color change of solution, etc.). However, in daily life, there were many applications of the alkali-base neutralizing reaction that reflected certain phenomena. For example, when the alkali-base neutralizing reaction was used to treat gastric acid, the symptoms of hypergastric acid (such as acid acid reversal and burning sensation in the stomach) would be alleviated; When slaked lime was used to alleviate the acidic soil, the state of the acidic soil would be improved, which was conducive to plant growth; When vinegar was used to remove scale, the scale would be dissolved; After mosquito bites, applying soap water could reduce redness, swelling, pain, itching and other symptoms. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The chemical reaction condition of the reaction between iron and diluted sulfuric acid was the presence of diluted sulfuric acid. In this reaction, iron reacted with dilute sulfuric acid to form FeSO2 and hydrogen. The chemical equation was: FeSO2 = FeSO2 + H2. The reaction phenomena included slow reaction speed, the formation of bubbles, the solution slowly turning from colorless to light green, and the gas generated in the reaction could burn and produce blue flames when burned. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>