According to the order of metal activity, copper (Cu) is more active than silver (AG). Theoretically, a substitution reaction will occur: The reaction phenomenon should be that the red copper gradually dissolved, and at the same time, a silver-white metal was formed on the surface of the copper, and the solution turned from colorless to blue. This was because copper replaced silver from its compound, and the resulting copper sulfuric acid solution was blue, while silver was a silver-white metal. However, because silver sulfuric acid (Ag2 SO2) is slightly dissolved in water, the reaction may proceed relatively slowly. Read more exciting novels for free
There is no chemical reaction between the two of them. In terms of chemical principles, the conditions for the metathesis reaction to occur were the formation of precipitations, gases, or water. The mixture of the two did not meet the conditions for the metathesis reaction to occur, so there would be no reaction. Therefore, there was no reaction equation, reaction phenomenon, and phenomenon analysis. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
There is no chemical reaction between NaCl2 and magnesiumcarbonate2. In chemistry, the conditions for metathesis reactions to occur were the formation of precipitations, gases, or water. After mixing the two, the conditions for the metathesis reaction were not met, so there was no reaction, no reaction equation, and no reaction phenomenon. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction of simply mixing nitric-acid and glycerine tended to be a oxido-reduction reaction rather than an esterfication reaction. The reaction equation was: Glycerol + nitric-acid → nitrogen dioxide + carbon dioxide + water. The reaction was violent, reaching the level of boiling. This was because it was a substance that was easily oxided. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction equation of KManganate and Manganic Sulphate is: 2KManganate +3Manganic Sulphate +2H <2> O = 5Manganic Sulphate +2H <2> Sulphate or 3Manganic Sulphate +2KManganic Sulphate +2H <2> O = 5H <2> Manganic Sulphate + K <2> Sulphate +2H <2> Sulphate. From the reaction equation, it was a neutral reaction. In the reaction, the Mn element in the potassium Permanganate was +7, the Mn element in the Manganic Sulphate was +2, and the Mn element in the Manganic Dioxid formed after the reaction was +4. During the reaction process, the different valences of the Mn element underwent an oxidoreduction reaction, causing the valency to return to +4. In terms of phenomena, the reaction would produce Manganese Dioxid, and the color of the solution might change or solid matter might be formed (Manganese Dioxid was a black solid). The specific phenomenon might also be affected by the reaction conditions (such as solution concentration, temperature, etc.). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The equation for the reaction between aluminum ions and carbonates is: 2Al3 + +3CO32- +3H2O === 2Al3 + 3CO2. The analysis of the reaction phenomenon was as follows: When aluminum ions (Al3 +) came into contact with carbon dioxide ions (CO32-), theoretically, they would form aluminum dioxide, but aluminum dioxide was a weak acid and weak base salt, and it was easy to decompose in an aquatic solution. In the process of digestion, aluminum ions combined with the hydrogen ions in the water to form aluminum trioxides. At the same time, the carbon dioxide ions came into contact with the hydrogen ions. As the carbon dioxide was unstable and volatile, it decomposed to produce carbon dioxide gas. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
There is no such substance as lead and aluminum. You may want to ask about the reaction of meta-aluminum and sulfuric acid. When the amount of sulfuric acid is insufficient, the reaction equation is: NaAlO <2>+ HNO <2>+ H <2> O = AI (OR)+ NaNO <2>, which is a white deposit when the sulfuric acid is added. When the amount of sulfuric acid was sufficient, the reaction equation was: NaAlO <2>+4HNO <3>= NaNO <3>+ AI (NO <3>)<3>+2H <2> O. The phenomenon was that the white deposit disappeared when the sulfuric acid was added and shaken. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
以硫酸为例,二氧化硫与酸性重铬酸钾反应的化学方程式为:\(K_{2}Cr_{2}O_{7}+3SO_{2}+H_{2}SO_{4} = K_{2}SO_{4}+Cr_{2}(SO_{4})_{3}+H_{2}O\),其离子方程式为:\(Cr_{2}O_{7}^{2 - }+3SO_{2}+2H^{+}=3SO_{4}^{2 - }+2Cr^{3 + }+H_{2}O\)。 在这个反应中,重铬酸钾(\(K_{2}Cr_{2}O_{7}\))中的铬元素从 +6价被还原为 +3价的\(Cr^{3 + }\),而二氧化硫(\(SO_{2}\))被氧化为硫酸根离子(\(SO_{4}^{2 - }\))。反应现象方面,溶液的颜色会发生变化,由于重铬酸根离子(\(Cr_{2}O_{7}^{2 - }\))通常具有特定颜色(一般为橙红色),反应后生成的\(Cr^{3 + }\)离子具有不同颜色(一般为绿色),所以反应过程中可以观察到溶液颜色由橙红色转变为绿色。 <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>
Under high temperature, the reaction equation of iron powder and soda ash is: 3Fe4 + 4NaOx = 4Na ^+2H2 ^+ Fe2 O ^, and there is no reaction phenomenon in this reaction. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Mercury reacts with oxygen under heating conditions to form mercury dioxide. The chemical equation is [2Mercury + O_{2}]{=[2Mercury + O_{2}]}{=[2Mercury + O_{2}]}{=[2Mercury + O_{2}}}}{=[2Mercury + O_{2}}}{=[2Mercury + O_{2}}}}{=[2Mercury + O_{2}}}{=[2O_{2}}}} 2HgO\)。 The reaction was the appearance of a large amount of white smoke. From the nature of the reaction, mercury was a chemical element with the element symbol <anno data-annotation-id ="00000000 - 4000 - 4000 - 8000 - 9000 - 80000000000"></anno>. It was located in the sixth cycle of the periodic table of chemical elements, Group III. It was a metal that existed in liquid form at room temperature and pressure. Its electron configuration allows the two electrons on the 6s sub-level to have extremely high orbital speeds, about 58% of the speed of light, which causes the mass of the electron to increase by 23% through the relativistic effect. The increase in the mass of the electron reduces the orbital radius, and mercury almost does not contribute its own electrons to form metal bonds. Mercury atoms attract each other mainly through van der Waals forces (this force is very weak). When heated, mercury reacted with oxygen to form mercury dioxide. Due to the change in the state of the substance during the reaction and the formation of the product, a large amount of white smoke appeared. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The double decomposition reaction between the two substances was found to be the chemical equation of [(ZnCl2}+2NaOx = Zn(Ox) 2}[downarrow+2NaCl2]. The reaction phenomenon was the formation of a white deposit, which was due to the formation of the deposit of the hydrogen dioxide. When there is an excess of NaOx, the reaction equation is [Mn (Ox)_{2}+ NaOx (Ox)_{2}+2H2}O]. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>