class 10th chemical reaction and equation
The chemical equation of the matting reaction
Under the high temperature smelting conditions, the matte-making reaction can be expressed as: (FeS)+(Cu2O)=(FeO)+(Cu2S), the reaction's Gibbs free energy change is? G0 = -144750+13.05T (J), and the equilibrium constant lgK of the reaction at 1250 ° C is 9.86, indicating that the reaction is rapidly moving to the right at the smelting temperature.
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2026-07-04 01:20
The chemical equation of the main reaction of tempering into steel
The main reaction of tempering steel was to let carbon and oxygen react to form carbon dioxide, thereby reducing the carbon content. The chemical equation of the reaction was: C + O <2>= ignition <2>= CO. The principle was that the main difference between pig iron and steel was the carbon content. The carbon content of steel was low, and the carbon in pig iron was reduced through this reaction to refine steel. At the same time, the iron-making reaction, Fe2 O2 + 3CO2 = 3CO2 + 2Fe2, was also a process that precluded the steel-making reaction, because steel-making was carried out with pig iron as the raw material.
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2026-06-23 17:05
The chemical equation of aluminum as the negative pole reaction
1. In an aluminum-Ni battery (negative pole-Al. positive pole- Ni. Electrolyte-NaCl-solution, O2), the chemical equation of the negative pole reaction is: 4Al12e- = 4Al3 +.
2. In a magnesium-aluminum battery (negative electrode-aluminum, positive electrode-aluminum, and an eletrolyte-lithium ion battery), the reaction of the negative electrode-aluminum battery was: Al3e +40H (-) = Al40H (-).
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2026-07-04 09:31
The chemical equation of the two-step reaction for preparing alcohol
制取乙醇的方法有多种，以下为您提供其中一种两步制取乙醇的化学方程式：
1. 粮食等含淀粉物质先转化为葡萄糖：\((C_{6}H_{10}O_{5})n + nH_{2}O \stackrel{酶}{→} nC_{6}H_{12}O_{6}\)。
2. 葡萄糖经发酵作用再转化为酒精：\(C_{6}H_{12}O_{6} \stackrel{酶}{→}2C_{2}H_{5}OH + 2CO_{2}\uparrow\)。
另外，也可以通过乙烯来制取乙醇，其两步反应如下：
1. 乙醇在浓硫酸作用下加热至170°C制得乙烯：\(C_{2}H_{5}OH \stackrel{浓H_{2}SO_{4},170°C}{→} CH_{2}=CH_{2}+H_{2}O\)。
2. 乙烯与溴单质发生加成反应后再反应得到乙醇（中间反应产物进一步反应的过程未详细给出，仅展示整体思路）：\(CH_{2}=CH_{2}+Br_{2} \longrightarrow CH_{2}BrCH_{2}Br\)（后续反应未详细列出完整步骤以得到乙醇）。
还有乙烯直接水化法，分两步进行，第一步是乙烯与醋酸汞等汞盐在水 - 四氢呋喃溶液中生成有机汞化合物，而后用硼氢化钠还原，整体反应为：\(CH_{2}═CH_{2}+H─OH \stackrel{催化剂}{→}C_{2}H_{5}OH\)。
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2026-07-01 11:55
The chemical equation of the reaction between carboric acid and alkalium
The chemical equation for the reaction between carboric acid and an alkali-like substance (using the example of soda ash) under heating conditions is: CO(NH2 <2>) 2 + NaCO(NH2 <2>) 2 + 2 H <2> O. The resulting carboric acid is an organic salt that can be widely used in medicine, agriculture, and other fields.
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2026-07-01 06:46
The chemical equation of the reaction between carbolic acid and basic substance
The chemical equation of the reaction between carboric acid and soda ash under heating is: CO(NH2 <2>)<2>+ Na <2> →NaCO(NH2 <2>)<2>+H <2> O.
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2026-07-05 02:10
The chemical equation of the reaction between concentrated sulfuric acid and copper dioxide
The chemical equation of the reaction between concentrated sulfuric acid and copper dioxide is CuO +2HQ = CuCl2 + H2 O.
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2026-07-01 10:05
The chemical equation of the reaction between Formalide and freshly prepared Copper Hydride solution
The chemical equation of the reaction between Formalide and Copper Hydride is: HHamster + 4Cu(Ox) 2-→ 2Cu 2 O → + CO 2 + 5H 2 O. The reaction process was carried out step by step. The first step: HCHF +2Cu(Ox) 2 == HCOOx + Cu2 O(→)+2H O (the reaction between the formalin group and the copper dioxide); The second step: HCOOx +2Cu(Ox) 2 ==H COOx + Cu2 O (the reaction between the formalin group and the copper dioxide).
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2026-07-03 09:05
Reaction equation of nitrogen and lithium
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\)。
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2026-07-04 03:13
Reaction equation of alkene and NaBH
1. According to Markovnikov's rule, the bonus was: <CH3- CH = CH2 + B2H6>
2. Alcohol formed after the decomposition: <CH3- CH(B2H5)-CH3 + H2O>
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2026-07-01 07:57
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