There was no reaction between $NH4NO3 and $AgNO3. In the metathesis reaction, the two compounds exchanged their components to form two other compounds. However, there was no deposit, gas, or water formed after the exchange of components between the two compounds, which did not meet the conditions of the metathesis reaction. Therefore, the two did not react, and the reaction equation could not be written. Read more exciting novels for free
It was very difficult for the reaction between the two solutions to occur, and there was no reaction equation. Due to the existence of p-pi in the double bond, the C-Clbond length was shortened and the bond energy was increased. It was difficult for the Cl-atom to leave, so it was difficult to react with the silver nitrates. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The chemical equation for the reaction between nitrogen (N ^) and lithium (Mn ^) is: <br><br> 3 Mn + N ^<br> stack rel {ignite}{=<br>=<br>Mg₃N₂\)。 <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The solution of silver amine was the solution of AgNOH. When it was mixed with the solution of NaOx, the solution of NaOx would cause the balance of the solution of silver amine to shift to the right, forming silver solute. The silver solute would decompose into silver dioxide under the light. The reaction process was (AgNOH) NOH = AgNOH → 2NOH. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction of sulfuric acid (HNO2) and soda ash (NaOx) will produce NaNO2 and water (H ^O). The chemical equation is: HNO2 + NaOx = NaNO2 +H ^O. This was a typical alkali-base neutralizing reaction. The hydrogen ions (H) from the ionisation of sulfuric acid combined with the hydrogen ions (H) from the ionisation of sulfuric acid to form water. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction equation for the production of nitrogen dioxide in the laboratory was: Cu +4HNO (concentrated) = Cu(NO) 2 + 2NO 2 ^+2H 2 O. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
There was no reaction between the saturated solution of NaCl2 and the solution of NaOx. This was because it did not meet the conditions for a metathesis reaction (forming a deposit, gas, or water). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
There is no chemical reaction between the nitrogen acid and water. It was an organic substance that was difficult to dissolve in water. When the two were mixed, there would be a layering phenomenon. The density of the nitrogen was higher than that of water, and it was in the lower layer. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
1. **金属与酸的反应** - **反应方程式及现象(以常见金属镁、铁、锌、铝与稀硫酸反应为例)** - 镁与稀硫酸反应:\(Mg + H_{2}SO_{4}=MgSO_{4}+H_{2}\uparrow\),现象为反应剧烈,有大量气泡产生。 - 铁与稀硫酸反应:\(Fe + H_{2}SO_{4}=FeSO_{4}+H_{2}\uparrow\),现象是有气泡产生,溶液由无色变为浅绿色(因为生成了亚铁离子)。 - 锌与稀硫酸反应:\(Zn + H_{2}SO_{4}=ZnSO_{4}+H_{2}\uparrow\),反应较剧烈,产生气泡。 - 铝与稀硫酸反应:\(2Al+3H_{2}SO_{4}=Al_{2}(SO_{4})_{3}+3H_{2}\uparrow\),产生气泡。 - **反应规律及图像问题(针对初中化学常见考点)** - 当等量的金属分别和足量的酸反应(酸过量)时,反应中最终产生氢气的多少由金属决定。在金属化合价相同的情况下,对于相同质量的金属,金属的相对原子质量越大,生成的氢气越少;生成的氢气越多,金属的相对原子质量越小。 - 当等量的酸分别和足量的金属反应(金属过量)时,反应产生氢气的量由酸的量决定,最终产生氢气的量相等。 - 两种或多种金属与稀酸反应时,反应的快慢(即相同时间内产生氢气的多少)由金属的活动性决定,在温度、金属颗粒大小和稀酸溶液溶质质量分数一定的条件下,金属的活动性越强,生成氢气就越快;生成氢气越快,说明金属的活动性就越强。在图像中,纵坐标通常为产生氢气的量,横坐标可能为时间、消耗酸的质量或消耗金属的质量。 2. **金属与盐溶液的反应** - **反应方程式及现象(以铁丝浸入硫酸铜溶液为例)** - 反应方程式:\(Fe + CuSO_{4}=FeSO_{4}+Cu\),现象为浸入溶液中的铁钉表面覆盖红色物质(铜),溶液由蓝色逐渐变为浅绿色。 - **反应条件及规律** - 金属(钾、钙、钠除外)的活动性强于盐中金属阳离子对应的金属;盐必须可溶于水。当多种金属和多种盐溶液反应时,最活泼的金属先与最不活泼的金属盐反应,再轮到较活泼的金属或金属盐反应。例如向一定量的硝酸银和硝酸亚铁混合溶液中加入锌粉,金属活动性顺序为锌>铁>银,锌先与硝酸银反应,硝酸银完全反应后,若锌还有剩余,则锌再与硝酸亚铁反应。 3. **金属与酸性溶液中的氢离子反应(以酸性溶液与金属反应为例)** - 酸性溶液中的氢离子(\(H^{+}\))会与金属发生反应,如形成氢气,同时金属逐渐溶解,但未明确具体金属时无法给出确切方程式。 4. **特殊金属与溶液反应(如金属铋与稀硝酸反应)** - 放入金属铋,加入稀硝酸,加热试管,冷却后加水稀释,反应方程式为\(Bi + 4HNO_{3}=Bi(NO_{3})_{3}+NO\uparrow+2H_{2}O\)(根据给出的后续反应推测铋与稀硝酸反应的可能方程式),现象未明确提及,可能有气体产生等现象。 5. **金属与水反应(以金属钾与水反应为例,虽然未明确要求,但属于金属与溶液相关反应类型)** - 金属钾与水反应:\(2K + 2H_{2}O = 2KOH+H_{2}\uparrow\),现象是反应剧烈,可能有燃烧、爆炸等危险现象(因为反应放出大量热和氢气)。 <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 between a solution and a metal used chemical symbols and chemical formulas to represent the chemical reaction between the solution and the metal. It described the process of transforming the reagents (solute and metal in the solution) into products. It followed the law of conservation of mass, which meant that the type and number of atoms would not change in a chemical reaction. For example, in the chemical equation,[2Na +2H ^O = 2Na +2H ^O + H ^^], it means that the metal, Na, will react with water to form Na ions, Ox ions, and hydrogen. The reaction equation not only indicated what the reagents and products were, but it could also express the ratio of the number of particles (the ratio of the number of molecules or atoms) between the substances through the stoichiometric-number (the coefficient in the equation). At the same time, the mass relationship between the reagents and products could be determined according to the relative atomic mass or relative molecular mass. This helped to predict the outcome of the reaction, calculate the amount of reagents and products, and understand the nature of the reaction. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Based on context alone The concentrated sulfuric acid could not be used for the preparation of hydrogen. Because hydrogen is an basic gas, concentrated sulfuric acid is volatile and acidic. When the two meet, a reaction will occur: <anno data-annotation-id ="cdf10000 - 4c00 - 4c10 - 4c10-a100-a11111110000"></anno>(the reaction phenomenon is to produce a large amount of white smoke), rather than being used to prepare hydrogen. The laboratory usually uses a solid mixture of lithium monium and lithium monium to heat up to prepare hydrogen. The reaction equation is [2NH4] Cl2 + CaCl2][2][3][4][4][5][6][7][8][8][9][9][ CaCl_{2}+2H_{2}O + 2NH_{3}\uparrow\)。 <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>