铁与硝酸的反应: - 铁和稀硝酸反应:\(Fe + 4HNO_{3}(稀)=Fe(NO_{3})_{3}+NO↑+2H_{2}O\)。 - 铁遇浓硝酸在常温下会钝化,加热时反应:\(Fe + 6HNO_{3}(浓)\stackrel{△}{=}Fe(NO_{3})_{3}+3NO_{2}↑+3H_{2}O\)。 - 若\(Fe\)过量,会与\(Fe(NO_{3})_{3}\)继续反应:\(Fe+2Fe(NO_{3})_{3}=3Fe(NO_{3})_{2}\)。 铜与硝酸的反应: - 铜与稀硝酸反应:\(3Cu + 8HNO_{3}(稀)=3Cu(NO_{3})_{2}+2NO↑+4H_{2}O\)。 - 铜与浓硝酸反应:\(Cu + 4HNO_{3}(浓)=Cu(NO_{3})_{2}+2NO_{2}↑+2H_{2}O\)。 当铁铜混合物与硝酸反应时,若硝酸不足量,反应后生成硝酸盐,溶液中的盐含有\(NO_{3}^{-}\),再加稀硫酸提供\(H^{+}\),会发生氧化还原反应,再次溶解一部分金属。 点击前往免费阅读更多精彩小说
When the iron reacted with the copper sulfuric acid solution, the surface of the iron layer would release a red substance, and the solution would turn from blue to light green and finally brown. This was because the copper sulfuric acid solution was blue and weakly acidic, so the reaction first corroded the iron and formed the iron ions. The iron ions solution was light green, causing the solution to change from blue to light green. At the same time, because the metal activity of iron was stronger than copper, a replacement reaction occurred. The copper ions in the solution were replaced and reduced to copper. The copper was red, and red substances were separated from the surface of the iron. Subsequently, the iron ions in the solution were unstable and would continue to be oxided into iron ions. The iron ions in the solution were brown, so the solution would turn from light green to brown. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
When iron reacted with the mixed solution of sulfuric acid and copper sulfuric acid, there was no problem of who reacted with iron first. This was because sulfuric acid and copper sulfuric acid were uniform solutions, and it was impossible to determine which iron would come into contact with first. This kind of mixture reaction was a competitive reaction. The iron would react with whichever ion it came into contact with first. Although Cu2 was more oxidisable than H, hydrogen could not reduce Cu2 in the water solution, so there was no order. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The chemical equation for the reaction between iron and diluted sulfuric acid is: FeCl2 + H2 → FeCl2 → FeCl2 → Fe <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction between iron and sulfuric acid could not produce hydrogen, and the reaction type was not a substitution reaction. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
When the three metals, namely, titanium, titanium, and iron, reacted with the acid, the order of activity of the metals was as follows: titanium, and titanium. Under the same conditions, when it reacted with the same concentration of sulfuric acid, the reaction phenomenon was also different. The reaction between titanium and sulfuric acid quickly produced a large number of bubbles and released a lot of heat; the reaction between titanium and sulfuric acid produced bubbles and released heat; the reaction between iron and sulfuric acid slowly produced bubbles, and the solution changed from colorless to light green. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
1. 铁与浓硝酸反应: - 常温下铁在浓硝酸中会钝化,不反应。 - 加热时,若铁少量:\(Fe + 6HNO_{3}(浓)=\triangle=Fe(NO_{3})_{3}+3NO_{2}\uparrow+3H_{2}O\); - 若铁过量:\(Fe + 4HNO_{3}(浓)=\triangle=Fe(NO_{3})_{2}+2NO_{2}\uparrow+2H_{2}O\)。 2. 铁与稀硝酸反应: - 若铁少量:\(Fe + 4HNO_{3}(稀)=Fe(NO_{3})_{3}+NO\uparrow+2H_{2}O\); - 若铁过量:\(3Fe + 8HNO_{3}(稀)=3Fe(NO_{3})_{2}+2NO\uparrow+4H_{2}O\)。 <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 rate of concentrated sulfuric acid with copper was faster than that of diluted sulfuric acid with copper. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Anisole was dissolved in cold concentrated sulfuric acid, and aromatic sulfinic acid was added. The substitution reaction occurred at the aromatic ring position to form sulfinyl, which was blue in color. However, anisole and concentrated sulfuric acid did not react under heating conditions, because the two structures of the aromatic ring and ether were difficult to react with concentrated sulfuric acid. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Based on context alone Iron Sulphate (Fe2 (SO)) and nitrogen nitrogen (usually in the form of NHin solution) will react. In the solution, iron ions (Fe3) will be produced by the dissolution of iron sulfuric acid, and the iron ions will undergo a double decomposition reaction with the lithium ions (NH3). Iron ions were decomposed to produce iron (III), while the nitrogen ions were decomposed to produce nitrogen (III). The nitrogen ions were unstable and would decompose to produce nitrogen (III). The reaction equation was roughly as follows: Fe₂(SO₄)₃ + 6NH₄⁺ + 6H₂O = 2Fe(OH)₃↓+ 3(NH₄)₂SO₄ + 6H⁺ (NH The reaction will continue to proceed to the right, and the nitrogen ions will be further decomposed to produce hydrogen gas that escapes from the system. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The chemical equation of the reaction between concentrated sulfuric acid and copper dioxide is CuO +2HQ = CuCl2 + H2 O. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>