The reaction between aluminum and boiling water produces aluminum trioxides and hydrogen. The chemical equation is: 2AI + 6H_{2}O = 2AI (Ox)_{3}+ 3H_{2} The reaction rate between aluminum and boiling water was very slow. Read more exciting novels for free
以下是几种水解制氢的反应式: 1. 铝水反应制氢: - \(2Al +4H_{2}O = 2AlO(OH)+3H_{2}\uparrow\) - \(2Al + 6H_{2}O=2Al(OH)_{3}+3H_{2}\uparrow\) 2. 硼氢化钠催化水解制氢:\(NaBH_{4}+2H_{2}O\stackrel{催化剂}{=\!=\!=}4H_{2}+NaBO_{2}\) <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>
Different coolants react differently with water: - The solidifying temperature of the formed water solution is lower than 0 ° C. The chemical equation of the reaction with water is not mentioned. - The chemical equation for the reaction between fluorine and water is: 2F <2>+2H <2> O = 4HF + O <2>. - Halocarbon and carbon-hydrogen condensants were difficult to dissolve in water. There was no mention of the chemical equation for the reaction with water, but water would undergo a phenomenon of dehydration after dissolving the condensants, forming acidic substances. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
硫酸亚铁铵的制备一般从废铁屑开始,先将铁屑经碱溶液洗净之后,用过量硫酸溶解,反应方程式为\(Fe + H_{2}SO_{4}=FeSO_{4}+H_{2}\uparrow\),这一步会观察到铁屑逐渐溶解,溶液中有气泡产生。 然后加入稍过量硫酸铵饱和溶液,反应方程式为\(FeSO_{4}+(NH_{4})_{2}SO_{4}+6H_{2}O = Fe(NH_{4})_{2}(SO_{4})_{2}\cdot6H_{2}O\),在小火下蒸发溶剂直到晶膜出现,这一过程溶液逐渐变得浓稠,最后停火利用余热蒸发溶剂。过滤后用少量乙醇洗涤,得到硫酸亚铁铵晶体,产物为浅蓝绿色结晶或粉末。 <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 is: 2NaHSO2 + 2CH CH2Ox = Na SO2 +H SO2 + 2CH CH2Ox. The phenomenon of this reaction was not mentioned in the information provided, 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>
当氢氧化钠少量时:\(Ba(HCO_{3})_{2}+NaOH = H_{2}O+BaCO_{3}\downarrow+NaHCO_{3}\);当氢氧化钡少量时:\(2NaOH + Ba(HCO_{3})_{2}=2H_{2}O+BaCO_{3}\downarrow+Na_{2}CO_{3}\)。 关于反应现象,由于反应生成碳酸钡沉淀,溶液中会出现白色浑浊现象。 <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>
金属氧化物和稀硫酸反应会生成水和金属硫酸盐。例如: 1. 氧化镁与稀硫酸反应:\(MgO + H_{2}SO_{4} = MgSO_{4}+H_{2}O\)。 2. 氧化铁与稀硫酸反应:\(Fe_{2}O_{3}+3H_{2}SO_{4}=Fe_{2}(SO_{4})_{3}+3H_{2}O\)。 <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 double decomposition reaction between aluminum and sulfur could produce aluminum sulfuric acid, which was called NaAlSO4·12H2O. The reaction formula was: the reaction between aluminum and sulfur could produce aluminum sulfuric acid, which was called aluminum sulfuric acid. It was a colorless cubic octagonal crystal or white crystalline powder with a density of 1.6754 g/cubic centimeter. It was easily dissolved in water but not in alcohol. It was easily weathered in the air and lost 12 crystals of water when heated to become an anhydrite. It was widely used as a buffer, neutralizing agent, and solidifying agent in the food industry. It could also be used for refining sugar, as a raw material for swelling agents, and as a water purifying agent. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Metal ions in water mainly have the following reaction types: 1. ** Sedimentation reaction **: - Metal ions and many negative ions can form the precipitations of difficult dissolved substances. In addition to the simple precipitations reaction (such as\(Ag^++Cl^-\to AgCl\downarrow\), the formation and dissolution of many difficult dissolved substances are determined by the solute product\(K_{sp'). The formation and dissolution of many difficult dissolved substances are related to the pH of the solution, such as the precipitations of the acid, the precipitations of the weak acid salt, and the existence of the coordinating agent and the oxidiser. - When metal ions reacted with an alkalium, they would form a hydrating ion in the solution. As a weak acid, the addition of the <<H^+>> ion would cause the loss of the <H^+>> ion, resulting in the formation of a solute. The final product was the uncharged trihydrating di-hydrogen oxid (simplified to <M(OR)_2>), which was usually a precipitation. Some of the precipitations could be further dissolved in excess base to become negatively charged complex ions, and some of the precipitations could be dissolved in hydrogen. The reaction of different metal ions with the solution of soda or the solution of water to form a solute was different. Except for the alkali-metal and barium-metal matrixes, most of the other matrixes were difficult to dissolve. Some metal matrixes (such as Be, Mn, and Al-metal) were amphobic, and their acidic nature was obvious. They were easy to dissolve in diluted strong bases, but different metal matrixes had different pH values when dissolved in bases. - Alkali and alkali-earth metal sulphides are easily resolvable and will be strongly decomposed in solution. Sulfides of [Al^{3 +}],[Cr^{3 + }], and [Fe^{3 + }] will be completely decomposed in water to form a deposit of a hydrogen dioxide. Most of the other metal sulphides are hard to dissolve and most of them are colored. 2. ** Oxidation-reduction reaction **: The reaction types of metal elements in water solution can be divided into acid base reaction and oxidoreduction reaction. Oxidation-reduction reaction is a reaction in which electrons are transferred. 3. ** coordination reaction **: In the water environment, all metal ions exist as hydrating metal ions. In water, the complex reaction of this ion is a substitution reaction of the complex water molecules being replaced by other strong ligands. 4. ** Waterification reaction **: The corresponding salt of the metal element that makes up the amphobic solute (the salt of the acid) is easily waterlysable. The broad sense of the acid base reaction was a reaction that did not occur electron transfer, and the decomposition reaction belonged to the broad sense of the acid base reaction type. 5. ** Condensation reaction **: The broad sense of the acid base reaction is a reaction that does not occur electron transfer. Condensation reaction belongs to the broad sense of the acid base reaction type. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Additional reaction: - The addition reaction of ethene and Bromine: <<CH2 = CH2 + Br2> - The addition reaction of ethene and hydrogen bromidate was as follows: <CH2 = CH2> - Under certain conditions, addition reactions could also occur between ethene, hydrogen, and water. Since the chemical properties of ethyne (carbon-carbon triple bond) were similar to that of alkene (carbon-carbon double bond), similar addition reactions could also occur. - The aromatic ring can undergo an addition reaction with hydrogen (in the presence of a catalyst such as Ni). - Aldol groups can undergo a reduction reaction (addition reaction), such as: <anno data-annotation-id ="00000000 - 4c00 - 4c00 - 8c00 - 9c00 - 9c000b000000"> CH3CH20H </anno>. Substitution reaction: - The substitution reaction between methane and Cl2: CH4 + Cl2. - The substitution reaction of the aromatic ring: For example, the substitution reaction with the aromatic group using FeBr3 as a catalyst; the nitration reaction with the aromatic group using concentrated sulfuric acid under heating conditions (the hydrogen on the aromatic ring is replaced by the nitrogen group). - The substitution reaction of the halated carbon was as follows: <<CH3CH2Br2>+<NaBr2>>. - The substitution reaction of alcohol: <CH3CH20H>+<br>> longrightarrow <CH3CH2br>+<H2O>> - The ester's cleavage reaction (which can be seen as a substitution reaction):<CH3COOCH2CH3 + H2O> <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>