For the reaction between sulfur and metal, the following are the common reactions and situations: - Sulfur and iron reaction: The chemical equation is: FeS + S = (heating)FeS. This reaction does not involve free moving ions, so it cannot be rewritten as an ion equation. The phenomenon was the formation of black solid iron Sulphide. - Sulfur and copper reaction: The chemical equation is 2Cu + S = (heating) Cu2 S. Similarly, the ion equation cannot be written. The phenomenon was the formation of black cuprous sulfur solid. - Sulfur and Na reaction: The chemical equation is 2Na + S =(grinding)Na <2> S. There is no need to rewrite the ion equation. The phenomenon was that during the grinding process, a violent reaction formed a white solid of sulfur dioxide. - Sulfur and aluminum reaction: The chemical equation is 3S +2AI = Al2S, which cannot be rewritten as an ion equation. The reaction phenomenon was the formation of aluminum sulfur solid. - Sulfur and mercury reaction: The chemical equation is as follows: Mercury + S = HgS, which cannot be written as an ion equation. The reaction phenomenon is the formation of black mercury sulfur solid. In general, since most of these reactions were solid-state reactions or did not carry out the ionisation process in the solution system, there was basically no ion equation. Most of the reaction phenomena were the formation of the corresponding sulfur solid, and the color of the solid was different. Read more exciting novels for free
1. **硫与铁反应** - 方程式:\(Fe + S \stackrel{\triangle}{=\!=\!=} FeS\)(硫化亚铁,黑褐色) - 现象:反应剧烈,生成黑褐色固体。 2. **硫与铜反应** - 方程式:\(2Cu+S \stackrel{\triangle}{=\!=\!=}Cu_{2}S\)(硫化亚铜,黑色) - 现象:有黑色固体生成。 3. **硫与汞反应** - 方程式:\(Hg + S=\!=\!= HgS\)(硫化汞,黑色) - 现象:常温下迅速反应,生成黑色固体。 4. **硫与氢气反应** - 方程式:\(H_{2}+S \stackrel{点燃}{=\!=\!=}H_{2}S\) - 现象:有臭鸡蛋气味的气体生成。 5. **硫与氧气反应** - 方程式:\(S + O_{2}\stackrel{点燃}{=\!=\!=}SO_{2}\) - 现象:有刺激性气味的气体生成。 6. **硫与热的碱溶液反应** - 方程式:\(3S + 6NaOH \stackrel{\triangle}{=\!=\!=}2Na_{2}S+Na_{2}SO_{3}+3H_{2}O\)(离子方程式为\(3S + 6OH^{-}\stackrel{\triangle}{=\!=\!=}2S^{2 -}+SO_{3}^{2 -}+3H_{2}O\)) - 现象:无明显特殊现象(溶液中的反应,反应后溶液成分发生改变)。 <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 ion equation was: Cr2O72- +3SO2 + 2H + = 3SO42- +2Cr3 + + H2O. There was no reference to this reaction, so it was impossible to give an accurate answer. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The following is a summary of the equations and phenomena of the reaction between sulfur and metals: 1. ** Sulfur and Iron Reaction ** - The equation is: FeS ${stack}{triangle}{=}=}$ FeS (Iron Sulphide, dark brown) - [Phenomenon: Iron powder and sulfur powder are mixed and heated to red heat. The reaction produces a black solid that releases a lot of heat.] 2. ** Sulfur and Copper Reaction ** - The equation: 2Cu + S $\stacking rel {\triangle}{=\!=}$ Copper Sulfur (black) - [Phenomenon: The reaction produces a black solid.] 3. ** Sulfur and mercury react ** - Formula: Mercury + S = HgS (Mercury Sulphide, black) - [Phenomenon: The reaction produces a black solid.] In general, when sulfur reacted with metals, sulfur showed its oxidisation, while metals showed its reduction. The reaction formed a black solid. <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>
The reaction equation between sulfur and hydrogen is: H2 + S (====) H2S. However, the reference materials did not provide a video tutorial of this reaction phenomenon. Sorry, I can't give an accurate answer. <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>
|content| particulars| |--|--| |reaction equation| CH₃CH₂Br + NaC≡CCH₃ → CH₃CH₂C≡CCH₃ + NaBr| |phenomenon| The reference materials did not mention this reaction phenomenon, so it was impossible to answer accurately.| <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>
The chemical equation of the reaction between Na2SO4 and ClCl2 is Na2SO4 + Cl2 = NaHSO4 + Cl2. Because the HSO4 ^-in water was partially ionised, after adding a strong acid such as sulfuric acid, the reaction formed a weaker acidic HSO4 ^-ion. The ion equation for this reaction is: <i>(SO4 ^{2 - }+H^+ = HSO4 ^-<i>). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
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>