The reaction between sulfuric acid and copper was because copper had a reducing property, while concentrated sulfuric acid had a strong oxidisation property, and the two could undergo an oxidoreduction reaction. However, the reason why sulfuric acid did not react with copper was that it did not have the property of oxidization, so it could not undergo an oxido-reduction reaction with copper. Moreover, if the reaction was carried out according to CuSO4 + 2HQ = H2SO4 + CuCl2, both H2SO4 and CuCl2 were water-dissolved. Even if they reacted, the product would immediately dissolve in water, which did not meet the conditions for the metathesis reaction (water, gas, or precipitations). However, in an acidic environment, when a strong oxidiser such as hydrogen peroxid is added, the metal copper can be oxided. The equation is: Cu+ H2O2 + 2HQ = CuCl2 + 2H2O. The reaction of copper and sulfuric acid can also be achieved by using the principle of electrolysi. Read more exciting novels for free
Copper did not react with dilute sulfuric acid because copper was located after hydrogen in the metal activity sequence and could not replace the hydrogen in dilute sulfuric acid. However, copper and concentrated sulfuric acid can react under heating conditions, and the chemical equation is: Cu +2H ^SO (concentrated) CuSO + SO2 ^+2H ^O. In addition, in the process of wet smelting copper, copper dioxide reacted with sulfuric acid to form copper dioxide and water, and then copper dioxide reacted with iron to form copper and iron dioxide. This process indirectly reflected the conversion relationship between copper and sulfuric acid (copper was first converted into copper dioxide and then reacted with sulfuric acid). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
It would react with copper sulphuric acid. When the reaction between the solution of copper sulphate and the solution of copper sulphate occurs, the first reaction between the solution of copper sulphate and water occurs, and then the solution of copper sulphate and the solution of copper sulphate occurs. The solution of copper sulphate and the solution of copper sulphate will react to form hydrogen and hydrogen. The reaction equation is: 2Na +2H ^O = 2Na + H ^^. Then, the double decomposition reaction between the lithium hydrogen and copper sulfuric acid occurs to produce copper hydrogen and lithium sulfuric acid. The reaction equation is [CuSO2 + 2NaO4 CuSO2 + NaSO2]. The general chemical equation is [2Na + Cu2 + 2H2O = 2Na + Cu2 + H2]. The reaction phenomenon was that the metallic Na melted into a bright ball, swimming around on the surface of the water, making a " hissing " sound. A colorless and odorless gas was formed, and at the same time, a blue floccule deposit was formed in the reaction vessel. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
There are several main methods to produce copper from copper sulfuric acid: 1. ** Substitution reaction **: The elemental copper can be replaced by a metal that is more active than copper, such as iron. Since the metal activity of iron is stronger than copper, iron can be added to copper sulfuric acid solution to replace copper, thus obtaining elemental copper. 2. ** Heat and then reduce **: First, heat copper sulfuric acid to form copper dioxide. Then, the copper dioxide and reducing agent will react at high temperature to form copper. 3. Electrolyze: Copper can be obtained by electrolysing copper sulfuric acid solution. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
From the metal activity sequence table, it could be seen that copper was more active than silver. Nitric acid was a strong oxidistic acid, and it would react with metals with strong reducing properties first, which meant that it would react with copper first. Moreover, if silver reacted first to form silver nitrates, copper could reduce silver nitrates to silver and form copper nitrates. <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>
In secondary school, it was believed that copper sulfuric acid (CuSO2) and diluted sulfuric acid (HQ) did not react. However, from a theoretical point of view, if there was a reaction between the two (CuSO +2HQ = H ^(CuCl) + H ^SO), the solution would turn from blue to yellow-green. To judge the complete reaction, one could observe that the color of the solution no longer changed from blue to yellow-green and the color was stable. From the perspective of composition analysis, one could detect whether there was any residual copper sulfuric acid or sulfuric acid in the solution through chemical analysis. If the existence of copper sulfuric acid or sulfuric acid could not be detected, the reaction could be considered complete. However, under the knowledge system of middle school, whether this reaction was complete or not was not considered. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction between iron and copper sulfuric acid would not produce iron sulfuric acid. When iron reacted with copper sulfuric acid, iron was more mobile than copper, and a replacement reaction occurred. The iron atom lost two electrons and became a Fe2 ion, while the copper ion (Cu2) gained two electrons and was reduced to a copper atom. The reaction equation was: FeSO = FeSO + Cu2, and the product was FeSO, not Fe2 (SO). This is because in this reaction, iron is mainly oxided to iron ions instead of iron ions. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Under normal circumstances, carboric acid did not react with copper sulfuric acid. Because carboric acid was basic, it would not directly react with copper sulfuric acid to form a deposit or other new substances. However, when the biuret reagent was made by mixing copper sulphuric acid with a large excess of NaOx solution, it could detect the amine group in the ureas, which would cause a color change with the ureas. Moreover, the biuret that may be present in the ureas could react with copper sulphuric acid to produce a purple color, but this was not the reaction of the ureas itself with copper sulphuric acid. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
When iron and copper sulfuric acid react, because iron is more active than copper, iron can replace copper ions in copper sulfuric acid. The reaction equation is: The reaction phenomenon was that a purplish-red substance (the color of copper) was separated from the surface of the iron layer, and the solution changed from blue (the color of copper sulfuric acid solution) to light green (the color of iron sulfuric acid solution). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
It could react with sulfuric acid. The reason for the reaction between the two was that sulfuric acid had the ability to be acidic and could be used as a catalyst. From an acidic point of view, sulfuric acid could provide hydrogen ions to react with the ether. From the perspective of the sulfuric acid reaction, the sulfuric acid group (-SOH) in sulfuric acid could replace the hydrogen atom on the aromatic ring of the sulfuric acid. This was because the electron cloud density of the aromatic ring in the sulfuric acid was relatively high, and it was easy to be attacked by electrophiles (such as the sulfuric acid group in sulfuric acid), resulting in an electrophilic substitution reaction, which was the sulfuric acid reaction. During the reaction, different products would be produced depending on the reaction conditions. For example, it may produce p-hydrylsulfuric acid; if the reaction conditions are not properly controlled, because of the reduction of the ester and the oxidisation of the concentrated sulfuric acid, the ester may be oxided by the concentrated sulfuric acid into p-methylazone, and the p-hydrylsulfuric acid may be further Sulfonated to form 4 -hy- 1,3 -besilenedisulfuric acid. In order to prevent the sulfuric acid from evaporating the sulfuric acid during the process of sulfuric acid, the reaction temperature should be controlled to not exceed 90 ° C, and the concentrated sulfuric acid with a concentration of not more than 85% should be used. Other sulfuric acid could also be replaced by other sulfuric agents such as sulfur dioxide. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>