1. 当铁与过量浓硫酸反应时: - 反应方程式为\(2Fe + 6H_{2}SO_{4}(\text{热、浓})=Fe_{2}(SO_{4})_{3}+3SO_{2}\uparrow+6H_{2}O\)。 2. 随着反应进行,浓硫酸变稀后,过量的铁会继续与稀硫酸反应: - 反应方程式为\(Fe + H_{2}SO_{4}=FeSO_{4}+H_{2}\uparrow\)。 点击前往免费阅读更多精彩小说
Iron reacted with concentrated sulfuric acid. If there was an excess of concentrated sulfuric acid, the reaction equation was: Fe6 HNO2 (concentrated)= heating = Fe3 (NO2)+3NO2 ^+3H2 O. If there is an excess of iron, the reaction equation is: Fe4 HNO2 (concentrated)= heating = Fe2 (NO2) 2 + 2NO2 2 + 2H2 O. [Phenomenon: The reaction produces reddish-brown gas (NO <2>), and the iron is gradually dissolved.] At the same time, the color of the solution may vary according to the relative amount of iron and sulfuric acid and the degree of reaction. If the solution is formed, it may be brownish-yellow, and if the solution is formed, it may be light green. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
硫酸和硝酸反应方程式如下: 1. \(HNO_{3}+H_{2}SO_{4}\to NO_{2}^{+}+H_{3}O^{+}+HSO_{4}^{-}\),在这个反应中,硝酸和硫酸发生反应,产生了亚硝酸离子\((NO_{2}^{+})\)、氢离子\((H_{3}O^{+})\)和硫酸氢根离子\((HSO_{4}^{-})\)。 2. \(HNO_{3}+H_{2}SO_{4}\to NO+NO_{2}+H_{2}O+HSO_{4}^{-}\),此反应中,硝酸与硫酸反应,产生了亚硝酸\((NO)\)和二氧化氮\((NO_{2})\),以及水和硫酸氢根离子\((HSO_{4}^{-})\)。 <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 equation of sulfuric acid and sulfuric acid is: HNO2 + 3HQ = NOCl2 + Cl2 + 2H2O. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
There is no reaction between sulfuric acid (HQ) and iron chloride-iron (FeClCl2). This was because the iron in the iron chloride-acid was already +3, which was in the high price state of iron. It could no longer be oxided by sulfuric acid. At the same time, it did not meet the conditions for the metathesis reaction to occur (forming a deposit, gas, or water). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
铁与硝酸的反应比较复杂,因为硝酸有浓硝酸和稀硝酸之分,反应方程式如下: 1. 铁与稀硝酸反应: - 当铁少量时,化学方程式为:\(Fe + 4HNO_{3}(稀)=Fe(NO_{3})_{3}+NO↑ + 2H_{2}O\)。 - 当铁过量时,反应生成硝酸亚铁,化学方程式为:\(3Fe + 8HNO_{3}(稀)=3Fe(NO_{3})_{2}+2NO↑ + 4H_{2}O\)。 2. 铁与浓硝酸反应: - 在常温下,铁遇浓硝酸会发生钝化现象,表面生成一层致密的氧化膜阻止反应进一步进行。 - 加热时,反应方程式为:\(Fe+6HNO_{3}(浓)\stackrel{\triangle}{=}Fe(NO_{3})_{3}+3NO_{2}↑+3H_{2}O\)。 <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>
There was no reaction between Na2SO4 and CH3COH. Because the acid was weak and the sulfuric acid was strong, the reaction of the weak against the strong usually could not happen. Therefore, there were no reaction equations and reaction phenomena, so it was impossible to provide a summary in the form of a table. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction of aluminum dioxide (Al2O3) with sulfuric acid (AlCl3) and water (H2O2) was described as: AlCl3 + AlCl2 + AlCl2 + AlCl2 In this reaction, the reaction equation was the same regardless of whether there was an excessive amount of sulfuric acid or not. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
There was no reaction between the two, so there was no reaction equation. Because the metathesis reaction must produce water, gas, or precipitations, the reaction of sulfuric acid and sulfuric acid did not meet the conditions of the metathesis reaction, so it could not react. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction was more complicated when the mixture was heated. In addition to the formation of oxided products such as phenodinone, due to the dehydration and water absorption of hot concentrated sulfuric acid, a water molecules would be removed from the molecules to form substances such as diphenylethers, and some substances such as ester would also be formed. It was difficult to simply write a single reaction equation. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The chemical equation of the reaction between iron and dilute sulfuric acid was: FeSO2 = FeSO2 + H2. The reaction rate was affected by many factors, such as the concentration of the reagent, temperature, the surface area of the iron, and the presence of a catalyst. However, there was no specific equation called the " reaction rate equation of iron and dilute sulfuric acid " to describe the reaction rate. From the perspective of reaction rate theory, according to the effective collision theory, the reaction rate was related to the frequency of effective collisions between activated molecules. " For example, when the concentration increases, the number of molecules of the reagent in the unit volume increases, and the number of activated molecules also increases correspondingly. The effective collision frequency increases, and the reaction rate increases. When the temperature increases, the speed of the molecular movement increases, and the percentage of activated molecules increases. The effective collision frequency increases, and the reaction rate increases. The surface area of the solid iron increases, and the chances of contact between the reagents increase, and the reaction rate also increases. If there was a catalyst involved, the activation energy of the reaction could be reduced, allowing more molecules to become activated molecules, increasing the effective collision frequency and accelerating the reaction rate. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>