hydrogen

更新1: 关于第一题的补充： 由于hydrogencarbonate好像含有water和carbon dioxide 但water+carbon dioxide是carbonic acid 所以才出此问题。 carbonic acid是H2CO3，和hydrogencarbonate(HCO3^-)不同 calcium chloride是白色和solid state in standard condition(25度，1个大气压力). 参考: Handout 1.hydrogencarbonate ge chemical formula 系 HCO3^- but carbonic acid ge chemical formula 系 H2CO3.Thus they are not the same. 2.Calcium ions (Ca^2+)系 colourless ge.而chloride ions( Cl^-)都系colourless ge.The state of calcium chloride is solid. If you want to prove that it is calcium chloride you can use flame test to test for calcium and silver nitrate test to test for chloride.If flame test show the brick -red colour the pound must contains calcium ions (Ca^2+). In silver nitrate test a white ppt shows the pound contains chloride ions( Cl^-). 参考: my knowledge!!

氢气，氢元素，氢原子

Is hydrogen chloride a covalent pound? Hydrogen can form hydride or hydrogen ion. Then why hydrogen chloride is a covalent pound? Since hydrogen is a cation and chloride is an anion. Hydrogen chloride is posed of diatomic molecules each consisting of a hydrogen atom H and a chlorine atom Cl connected by a **covalent single bond**. Since the chlorine atom is much more electronegative than the hydrogen atom the covalent bond beeen the o atoms is **quite polar**. Consequently the molecule has a **large dipole moment** with a negative partial charge δ- at the chlorine atom and a positive partial charge δ+ at the hydrogen atom. For such large dipole moment beeen the o atoms the electron cloud of the large chloride ion will be attracted near to the very *** all hydrogen iron. As a result the bonding beeen hydrogen and chlorine is called dipolar covalent bond. OK. The details of above explanations are taught at A-Level chemistry. 参考: en. *** /wiki/Hydrogen_chloride Hydrogen chloride is regarded as a molecule the atoms of which are binded together by covalent bond and its molecules are attracted together by hydrogen bond (much stronger van der waals forces). A covalent pound is a substance where its atoms are binded together by covalent bond only such as diamond. Since hydrogen chloride is highly soluble in water as represented by the following equation:- HCl(l) + H20(l) --------> H30+(aq) + Cl-(aq) Pure hydrogen chloride is a covalent pound which exists as molecules. When hydrogen chloride is dissolved in water hydrogen chloride is ionized to give hydrogen ion and chloride ion. However the solution is known as hydrochloric acid but not hydrogen chloride. HCl(g) + aq → H^+(aq) + Cl^-(aq)

hydrogen chloride 英[u02c8haidru0259du0292u0259n u02c8klu0254:raid] 美[u02c8hau026adru0259du0292u0259n u02c8klu0254ru02ccau026ad] 氯化氢 [例句]Chlorine-37 likes to bond with hydrogen and vaporize out as hydrogen chloride.氯37容易与氢元素化合，以氯化氢的形式蒸发出来。

hydrogen chloride[英][u02c8haidru0259du0292u0259n u02c8klu0254:raid][美][u02c8hau026adru0259du0292u0259n u02c8klu0254ru02ccau026ad]氯化氢; 以上结果来自金山词霸例句:1.The method of purifying hydrogen chloride is introduced. 介绍了一种氯化氢精制技术。

semi hydrogenated 半氢化

【答案】：A答案解析：be composed of：由…组成。句意：水是由氢与氧化合而成的。

氢气，氧气

C

我还想知道 HYDROGEN 那里有实体店.......硬是没找到过...!

我还想知道 HYDROGEN 那里有实体店.......硬是没找到过...!

时宇轩手表专营店

be made up of 是固定短语，由...组成，构成，从整体上理解才对。

hydrogen bonding氢键hydrogen bonding[英][u02c8haidru0259du0292u0259n u02c8bu0254ndiu014b][美][u02c8hau026adru0259du0292u0259n u02c8bɑndu026au014b]氢键结合; 例句:1.Students will conduct the following experiments and observe the changes in physicalproperties due to cross-linking, hydrogen bonding and coagulation. 学生要进行以下的一些实验并观察由于交叉链，氢键，凝结等对聚合物物理性质的影响。

氢键 Hydrogen Bonding 与负电性大的原子X（氟、氯、氧、氮等）共价结合的氢，如与负电性大的原子Y（与X相同的也可以）接近，在X与Y之间以氢为媒介，生成X-H…Y形的键。这种键称为氢键。氢键的结合能是2—8千卡（Kcal）。因多数氢键的共同作用，所以非常稳定。在a-螺旋的情况下是N-H…O型的氢键，DNA的双螺旋情况下是N-H…O，N-H…N型的氢键，因为这样氢键很多，因此这些结构是稳定的，此外，水和其他溶媒是异质的，也由于在水分子间生成O-H…O型氢键。因此，这也就成为疏水结合形成的原因。

hydrogen chloride氯化氢；盐酸；氢氯酸；氢氟酸Chlorine-37 likes to bond with hydrogen and vaporize out as hydrogen chloride. 氯37容易与氢元素化合，以氯化氢的形式蒸发出来。很高兴第一时间为您解答，祝学习进步如有问题请及时追问，谢谢~~O(∩_∩)O

水素水（Hydrogen Water）就是富含氢离子的水，即氢水，国内又叫富氢水。氢在日语中被翻译“水素”，水素水是日本人的一种叫法.

烧氢定型表面、氢气退火表面

1.hydrogencarbonate indicator is used for carbon dioxide. If the carbon dioxide is present then the colour of hydrogencarbonate indicator changes from red to yellow 碳酸氢盐指示剂是用来测试二氧化碳的存在的 如果二氧化碳是存在的，那么碳酸氢盐指示剂的颜色会由红色转到黄色 _______________________________________________________________ by the way the conclusion he concludes does not correct because other gases do not change the colour of hydrogencarbonate indicator such as nitrogen and neon.If you truly want to test the present of oxygen you should put a glowing match to the gas jar .If the match relights then the oxygen is present . 另外，我认为他的结论是错的，因为有其他的气体都不会改变碳酸氢盐指示剂的颜色例如氢气和氮气，如果想测试氧气存在，就要放支有灰烬的火柴落瓶到，火柴再燃烧的话证明瓶有氧气 希望可以帮到你

4

The stable isotopes of oxygen and hydrogen，the tw o component atoms in the w ater molecule，are among the most revealing isotopes in hydrogeological studies.16O is the most abundant oxygen isotope， accounting for 99. 76 % of all oxygen ( Table 17. 1 ) .18O is next most abundant at 0. 20 % . For hydrogen，1H is the most common，accounting for 99. 985 % of hydrogen abundance，w hile2H ( or deuterium ，D ) accounts for a mere 0. 015 % . δ18O is defined in section 17. 1 ，w hile δ2H or δD is defined as follow s:Table 17. 1 The abundance of naturally occurring isotopes of hydrogen， carbon，nitrogen，oxygen and sulphurIn the cases of both18O and2H，the relevant standard is SMOW. This choice of standard reflects the fact that ocean w ater is the isotopically homogeneous point of origin of nearly all terrestrial w aters. Ocean w ater evaporates to form w ater vapour. This vapour has a tendency to be depleted in the heavier，less volatile isotopes，the degree of depletion being temperature，and thus latitude，dependent. The w ater vapour w ill eventually condense as rainfall or snow. The first precipitation to condense w ill have an isotopic composition similar to that of the vapour. How ever，the precipitation w ill have a tendency to remove progressively the heavier isotopes， leaving the vapour gradually more depleted as the air mass moves inland. In summary，the higher the latitude，the higher the altitude and the more distant from the ocean，the more depleted w ill be the rainfall in the heavy isotopes18O and2H. The various fractionation processes tend to operate proportionally on both oxygen and hydrogen，and meteoric w aters tend to obey the linear relation: w hich w as first reported by Craig in 1961 after analyzing some 400 samples of w ater from rivers，lakes and precipitation from all over the w orld.On a plot of δ2H versus δ18O，this results in a straight line named the meteoric water line. Equatorial，coastal precipitation plots tow ards the top right of the line. Points tow ards the low er left indicate precipitation in high latitude or continental areas. Thus the climatic or palaeogeographical conditions of recharge of groundw aters can be assessed by plotting them on the diagram. Deviation from the meteoric w ater line w ill occur if the groundw aters have been affected by any of the follow ing factors ( Figure 17. 1) .Figure 17. 1 Diagram illustrating possible shifts aw ay from the w orld meteoric w ater line for δ2H versus δ18O plots The arrow s indicate shifts aw ay from a typical meteorically derived groundw ater ( M G ) lying on the w orld meteoric w ater line. Ellipses show positions of hydrothermal w aters from Larderello ，Salton Sea，Steamboat springs and Yellow stone，illustrating a shift to the right relative to the meteoric w ater line· Mixing with non-meteoric waters，e. g. diagenetic water.· Evaporation of surface waters and very shallow groundwaters.· Mineral exchange reactions，which may be important in high temperature geothermal systems. In geothermal w aters，for example，there w ill be a shift tow ards a higher δ18O composition，due to exchange w ith oxygen in isotopically heavier silicates. A similar shift in hydrogen is not observed due to the relative paucity of hydrogen in most minerals.Hydrogen and oxygen isotopes have been applied in the studies of thermal water at Bath ( Figure 17. 2) and mineral waters at Harrogate in the UK. In both cases the waters were found to plot on the meteoric water line in a similar position to present-day rainfall. This indicates a nonexotic origin for the waters，i. e. recharge under similar climatic conditions to today"s. The groundwaters are thus presumed to be younger than the last ice age，i. e. less than 10000 years old.Figure 17. 2 The use of δ2H versus δ18O plots to discern the palaeogeographic conditions of recharge of the thermal mineral w aters of Bath and Hotw ells in the UK The isotopic data indicate that the w aters have been recharged under climatic conditions similar to today"s，in contrast to some other UK groundw aters，w hose light isotopic signature indicates recharge under more glacially dominated conditions ( Late Pleistocene)

General Characteristics A colorless nonflammable and liquefied gas with a perating odor Health Hazards Toxic. Attacks the eyes and mucous membranes Technical Information Molecular Weight: 20.0 Specific Volume: 19.2CF/lb Fire Potential: Nonflammable TLV-TWA: 3 ppm (ACGIH 1991-1992) CGA Valve: 670 LB: 110 Dot Name: Hydrogen Fluoride Anhydrous UN No.: UN1052 Dot Class: 8 Dot Label: Corrosive Poison Cas Registry: 7783-06-4 Cylinder Pressure @ 70°F: 0.9 psig 氟化氢是半导体工业常用之强酸，除造成皮肤灼伤外，亦会影响人体电解质之平衡，有立即的生命危害。处理方法与火焰、热水或一般酸碱灼伤不同。特别值得临床医护人员注意与重视。 2006-12-04 23:28:18 补充： 物化特性氟(fluorine)是化学活性很强的元素，淡黄色刺鼻有腐蚀之毒性气体，于 1886年首先由法国化学家 Henri Moissan 电解氟化钾及氟化氢而得到纯化的氟。氟化氢（ Hydrogen Fluoride ）系由氟石（fluorspar又称氟化钙 CaF2）与硫酸作用而得。水溶液（solution form）称为氢氟酸（ hydrofluoric acid）是一种无机强酸，常用于在工业与研究方面。依用途不同而有不同浓度，如38%、47%、53%或70%等等。氟化氢熔点为-83.55℃，沸点是19.5℃，分子量20.01公克／莫耳，常温（25℃）时为无色无味具腐蚀性之气体。 参考: hsg/pure_hydrogen_fluoride pcc.vghtpe/old/docms/30401 氟化氢(化学式：HF 并不是HCl)是一种极强的腐蚀剂，有剧毒。它是无色的液体，但是在空气中，只要超过3ppm就会产生 *** 的味道。 由于氟原子电负性很大 所以会与氢原子形成氢键的缘故，所以沸点较氯化氢、溴化氢、碘化氢等为高。 其水溶液氢氟酸是一种弱酸，但氢氟酸本身具对矽(硅)及二氧化矽有极强的侵蚀能力。 故可腐蚀玻璃(主要成分是二氧化矽及矽酸盐)，是唯一可腐蚀玻璃的酸，所以日常贮存要使用塑料瓶或铅制容器。 氢氟酸可以透过皮肤黏膜、呼吸道及肠胃道吸收，若不慎发生氢氟酸暴露，应立即用大量清水冲洗20至30分钟，然后以葡萄酸钙软膏或药水涂抹；若不小心误饮，则要立即喝下大量的高钙牛奶，然后紧急送医处理。 参考: zh. *** /w/index?title=%E6%B0%9F%E5%8C%96%E6%B0%A2&variant=zh- Hydrogen fluoride是氢氛化物 you mean HCl ? if it is HCl it "s a kind of strong acid which is the mon acid in lab sure can kill people 盐酸 sure can dissolve a human =.=

易车讯 日前，标致e-Expert Hydrogen氢燃料电池车下线。标致Expert车系目前提供燃油版本、纯电版本以及氢燃料电池版本，标致e-Expert Hydrogen氢燃料电池车年底前可交付，首个商业用户为米其林旗下子公司watera。标致e-Expert Hydrogen首先在法国生产，然后在德国组装。新车充满氢气仅需3分钟，WLTP续航里程400公里。其电池容量10.5千瓦时，极速130公里/小时。与燃油版和纯电版车型相比，标致e-Expert Hydrogen提供两种车身长度车款，内部装载容积可达6.1立方米，有效载荷1000公斤，最大拖曳质量1000公斤。此举不仅是Stellantis集团在新能源领域的进展，European Clean Hydrogen Alliance组织也在努力发展该生态，其计划投资600亿欧元来推广发展氢燃料的解决方案。

hydrogen是一个可以调用jupyter核运行代码然后将运行结果直接展现在代码中的atom包，支持如python R scala spark等语言。我用的Python较多，此处拿Python示范如何使用hydrogen有点事…等会补充答案

更新1: 唔好copy维基唔该... 听完你讲都系唔明hydrogen bond d electron系点分... hydrogen bonding is not ionic bond nor covalent bond. You may regard Hydrogenbond as Van der waals" force and is stronger than the other Van der waals" force i.e. dipole attraction There is no involvement in sharing electron in H-bond. In Hydrogen bond Y---HX the orbital holding lone pair of electronegative atom Y overlap with the empty orbital of hydrogen atom. You also have to understand Y being electronegative atom carries partial negative charge and H hydrogen carries partial postive charge. + form bond with -. Hydrogen bond is raised from this. water molecule cannot form 4 hydrogen bond but the coordination number of water is 4. Covalent bonds - the elements SHARE PAIRS of electrons. Ionic bonds - ions (elements with different no. of protons & electrons - thus have either positive (+) or negative (-) charge) bond as they have different charges. As one knows "same charge repell opposite charges attract" As the name "hydrogen bond" implies one part of the bond involves a hydrogen atom. The hydrogen must be attached to a strongly electronegative heteroatom such as oxygen nitrogen or fluorine which is called the hydrogen-bond donor. This electronegative element attracts the electron cloud from around the hydrogen nucleus and by decentralizing the cloud leaves the atom with a positive partial charge. Because of the *** all size of hydrogen relative to other atoms and molecules the resulting charge though only partial nevertheless represents a large charge density. A hydrogen bond results when this strong positive charge density attracts a lone pair of electrons on another heteroatom which bees the hydrogen-bond acceptor. The hydrogen bond is not like a simple attraction beeen point charges however. It possesses some degree of orientational preference and can be shown to have some of the characteristics of a covalent bond. This covalency tends to be more extreme when acceptors bind hydrogens from more electronegative donors. 参考: edinformatics/interactive_molecules/hydrogen_bonds

Hydrogen Text: 1.)prepare a text tube that contain hydrogen a match. 2.)burn the match and put in the tube. 3.)you will hear a pop sound. Why for? The hydrogen are very unstable unlike noble gas hydrogen are very reactive. When energy trfers to the gas they are overreactive. If they dont bine with other substances they will breakdown. Common they bine with oxygen to form water(H2O) and release the sound energy. The water is in steam(gas) form. Note: 1:)All substance have a life time. 2:)Substance bine with substance will posepone their life time. 参考: ME pop sound test hydrogen burns with a "pop" sound store the gas in a stoppered test tube take out the stopper and put a burning sprint near the mouth of the test tube you will hear a "pop" sound if hydrogen is present 参考: me* You can use a lighted splint to put close to the test tube....a "pop" sound will be given if it is hydrogen...but you need to put extra care when you do the testing Hope that it would help If u put a burning splint into the test tube containing hydrogen u will hear a pop sound.

hydrogen evolution析氢双语对照词典结果：网络释义1. 析氢2. 制氢.___________________________很高兴为你解答！如有不懂，请追问。 谢谢！

hydrogen ads/des氢的广告/ DES.-----------------------------------如有疑问欢迎追问！满意请点击右上方【选为满意回答】按钮

不能删阶除的。Hydrongen图标包只能刷机换系统才能去掉。

hydrogencyanide的意思是：[无化]氰化氢。hydrogencyanide的意思是：[无化]氰化氢。hydrogencyanide的英英释义是Noun:ahighlypoisonousgasorvolatileliquidthatsmellslikebitteralmonds;becomesagasatarounddegreeFahrenheitandismostdangerouswheninhaled;theanhydrideofhydrocyanicacid;usedinmanufacturing。hydrogencyanide的例句是Solet"shydrogencyanideasourfirstexample.那么让我们以氰化氢为第一个例子。Theadditionreactionwithhydrogencyanideisbase-catalysed.与氰氢酸的加成是碱催化的。IfacherryPIPischewed,crushed,orsomehowdamaged,itautomaticallyproduceshydrogencyanide.一旦樱桃核被咀嚼或咬碎了，他就会自动产生氢氰酸。一、英英释义点此查看hydrogencyanide的详细内容Noun:ahighlypoisonousgasorvolatileliquidthatsmellslikebitteralmonds;becomesagasataround90degreeFahrenheitandismostdangerouswheninhaled;theanhydrideofhydrocyanicacid;usedinmanufacturing二、网络解释1.氰化氢：本标准是为工作场所有害因素职业接触限值配套的监测方法,用于监测工作场所空气中无机含氮化合物[包括一氧化氮(Nitrogenmonoxide,Nitricoxide)、二氧化氮(Nitrogendioxide)、氨(Ammonia)、氰化氢(Hydrogencyanide)、氢氰酸(Cyanicaci2.2.氢氰酸：猎户星座光谱的一个独特的特性是光谱的丰富性:这保证了能够在丰富的分子中,识别出水、一氧化碳(carbonmonoxide)、甲醛(formaldehyde;也称福尔马林)、甲醇(methanol)、二甲醚(dimethylether)、氢氰酸(hydrogencyanide)、硫氧化物(sulphuro3.氢氰酸农药/杀虫剂,杀鼠剂：368HYDROCORTISONE氢化可的松兽医药/甾类抗炎药物|369HYDROGENCYANIDE氢氰酸农药/杀虫剂,杀鼠剂|370HYDROGENPHOSPHIDE磷化氢农药/杀虫剂,杀鼠剂4.(二六)氰化氢：(二五)氯Chlorine|(二六)氰化氢Hydrogencyanide|(二七)溴甲烷Methylbromide三、例句Solet"shydrogencyanideasourfirstexample.那么让我们以氰化氢为第一个例子。Theadditionreactionwithhydrogencyanideisbase-catalysed.与氰氢酸的加成是碱催化的。IfacherryPIPischewed,crushed,orsomehowdamaged,itautomaticallyproduceshydrogencyanide.一旦樱桃核被咀嚼或咬碎了，他就会自动产生氢氰酸。hydrogencyanide的相关临近词hydrogen、hydrogenion点此查看更多关于hydrogencyanide的详细信息

collagen serum.. 胶原蛋白血清hydrogen氢

hydrogencyanide的意思是：[无化]氰化氢。hydrogencyanide的意思是：[无化]氰化氢。hydrogencyanide的英英释义是Noun:ahighlypoisonousgasorvolatileliquidthatsmellslikebitteralmonds;becomesagasatarounddegreeFahrenheitandismostdangerouswheninhaled;theanhydrideofhydrocyanicacid;usedinmanufacturing。hydrogencyanide的例句是Solet"shydrogencyanideasourfirstexample.那么让我们以氰化氢为第一个例子。Theadditionreactionwithhydrogencyanideisbase-catalysed.与氰氢酸的加成是碱催化的。IfacherryPIPischewed,crushed,orsomehowdamaged,itautomaticallyproduceshydrogencyanide.一旦樱桃核被咀嚼或咬碎了，他就会自动产生氢氰酸。一、英英释义点此查看hydrogencyanide的详细内容Noun:ahighlypoisonousgasorvolatileliquidthatsmellslikebitteralmonds;becomesagasataround90degreeFahrenheitandismostdangerouswheninhaled;theanhydrideofhydrocyanicacid;usedinmanufacturing二、网络解释1.氰化氢：本标准是为工作场所有害因素职业接触限值配套的监测方法,用于监测工作场所空气中无机含氮化合物[包括一氧化氮(Nitrogenmonoxide,Nitricoxide)、二氧化氮(Nitrogendioxide)、氨(Ammonia)、氰化氢(Hydrogencyanide)、氢氰酸(Cyanicaci2.2.氢氰酸：猎户星座光谱的一个独特的特性是光谱的丰富性:这保证了能够在丰富的分子中,识别出水、一氧化碳(carbonmonoxide)、甲醛(formaldehyde;也称福尔马林)、甲醇(methanol)、二甲醚(dimethylether)、氢氰酸(hydrogencyanide)、硫氧化物(sulphuro3.氢氰酸农药/杀虫剂,杀鼠剂：368HYDROCORTISONE氢化可的松兽医药/甾类抗炎药物|369HYDROGENCYANIDE氢氰酸农药/杀虫剂,杀鼠剂|370HYDROGENPHOSPHIDE磷化氢农药/杀虫剂,杀鼠剂4.(二六)氰化氢：(二五)氯Chlorine|(二六)氰化氢Hydrogencyanide|(二七)溴甲烷Methylbromide三、例句Solet"shydrogencyanideasourfirstexample.那么让我们以氰化氢为第一个例子。Theadditionreactionwithhydrogencyanideisbase-catalysed.与氰氢酸的加成是碱催化的。IfacherryPIPischewed,crushed,orsomehowdamaged,itautomaticallyproduceshydrogencyanide.一旦樱桃核被咀嚼或咬碎了，他就会自动产生氢氰酸。hydrogencyanide的相关临近词hydrogen、hydrogenion点此查看更多关于hydrogencyanide的详细信息

更新1: thanks so much everyone :))) upload.wikimedia/ *** /mons/thumb/c/c9/Carboxylic_acid_dimers/320px-Carboxylic_acid_dimers Experimentally based on the bond angles and isolation of dimeric structures of light carboxylic acids it is believed that the lone pair on the carbonyl oxygen would form hydrogen bonding with the electron deficient hydroxyl hydrogen on another carboxylic acid molecule. Because of sharing of electron density of this carbonyl oxygen the electron density from the H-O bond within the same carboxyl group is shifted toward it and bees electron deficient such that the hydrogen tends to share electron from the carbonyl oxygen of the other molecule. The result is formation of o intermolecular hydrogen bonds within a hexagonal ring as illustrated in the picture from the hyperlink above. i.e. one hydrogen bond per molecule. Even with molecules containing more than one acid group e.g. benzene-dicarboxylic or -tricarboxylic acids 3 hydrogen bonds per carboxylic acid group seems impossible. 参考: upload.wikimedia/ *** /mons/thumb/c/c9/Carboxylic_acid_dimers/320px-Carboxylic_acid_dimers ON AVERAGE o hydrogen bonds only. Personally I think 3 H-bonds are possible but would be overally less stable than the 2 H-bond state (since some molecules would not be able to form 2 H-bonds while the 3rd H-bond is not as strong according to Leo).

Hydrogen bond-----氢键 交通大学生物科技： hydrogen bond 中文： 氢键 说明：无 定义：氢原子(H)与相邻的氧原子(O)、氮原子(N)或氟原子(F)间所形成的弱电性结合。但在生物体中则有维持构造稳定的效果。 相关：deoxyribonucleic acid(DNA)、double helix(双股螺旋)、ribonucleic acid(RNA) *** ： 氢键是一种氢原子与氮、氟、氧组成的键，表示为X-H…Y。 构成 * 氢键是由两个电负性都很高的元素(例如F、O、N等)通过H原子形成三中心四电子键 *其中X-H是极性键，X带负电荷，H带正电荷 * H和Y上的孤对电子产生强烈的吸引作用而形成氢键 键参数 * 氢键的键长指X和Y间的距离 * 氢键的键能一般在40kJ·mol-1以下，比一般共价键键能小 作用 * 物质的物理性质和化学性质在很大程度上受到氢键的影响，如物质的熔点、沸点、溶解度和酸碱性等 *例如：冰中每个H2O水分子都按四面体方向参与形成4个O-H…O氢键，水的沸点和冰的熔点都要比同系物高得多 Wikipedia 英文版本：en. *** /wiki/Hydrogen_bond 参考: 交通大学生物科技、 *** hydrogen bond will be form beeen : an H atom covalently bond with the electronegative atom(O N F) and the other electronegative atom(O N F) is closed to H

hydrogen-bonded是指“以氢键连接的……”，hydrogen bonding是指氢键本身，这两词虽然看上去很像，然鹅重点完全不一样。

hydrogen-powered 这个是合成词：氢能的hydrogen burning 可不加横杠：氢燃烧名词-形容词 这样可以合成一个新的形容词。

宝马自从四年前开始大力研发氢燃料电池车型后，今年首款 iX5 Hydrogen 氢燃料跨界车亮相，这也代表宝马开始了对氢能源车的豪赌，其实宝马是最早关注氢能源汽车的未来发展的，但整体测试一直断断续续，但目前已有近100台氢能源车开始全面测试。和宝马一起参与豪赌氢能源未来的还有丰田，宝马目前已向丰田采购氢燃料燃料电池，并德国慕尼黑开始建设氢能源中心生产燃料电池堆。据悉，宝马和丰田自2013 年开始就一直在携手探索氢燃料电池驱动系统，但2035年欧洲全面禁售燃油车政策已落地，宝马更为急切的需要将氢燃油汽车电池系统与目前第五代 eDrive 动力总成技术相结合，并形成成熟产品推向市场，研发项目还包括氢燃料电动机、变速器和锂离子电池组。根据宝马官方公布，目前第五代 eDrive 动力总成已成熟，首款BMW iX5 Hydrogen 氢燃料试点车队也已启动，已开展全面路试，新车将会在2023 年投入使用，新车输出总功率为 401 马力（295 千瓦），在测试车型iX5 Hydrogen上 WLTP 循环中可以行驶500公，该车辆配备两个经碳纤维包裹增强塑料储罐，可储存近 6 公斤的氢气，可以在3-4分钟内加注完成。iX5可以在不到 6 秒的时间内完成0-100 公里/小时加速度，最高时速超过 180 公里/小时。同时宝马方面也准备了近900 名员工，并调整新车生产线，为新车型批量生产做好了全面准备。同时宝马透露，最早将于2025年开始量产与丰田联合开发的氢燃料电池汽车。当然宝马董事长也表示，未来氢能源将会变得更为便捷、安全、清洁，并成为更年轻人所喜爱的全新车型，当然除了行驶车型定型以外，加氢站和氢气运输也会成为相关配套措施进行研发。就目前新能源纯电动汽车走向来看，美国特斯拉、中国比亚迪在锂电池方面都具备强劲的发展势头。但依然有厂家认为燃油发动机的潜力依然还没开发完，比如马自达。同时一些厂家在继续探索化石燃料替代品，比如保时捷更关注新型合成汽油，当然还有一条路线就是像宝马、丰田一样的押注氢能源，可以看出未来新能源的道路上很多企业赛道是不同的，虽然目前因为技术原因大部分集中在传统锂电池车上，但随着电池安全和废旧电池处理问题的关系，新能源势必会多头齐发，各路开花。【本文来自易车号作者凤眼观车，版权归作者所有,任何形式转载请联系作者。内容仅代表作者观点，与易车无关】

易车讯 近日，首批宝马iX5 Hydrogen氢燃料电池车试点车队在比利时安特卫普开启路试。历时四年的研发，宝马iX5 Hydrogen氢燃料电池车项目进入下一阶段。近100辆宝马iX5 Hydrogen氢燃料电池车组成的试点车队将在全球进行车辆展示与试用，试点车队将于今年来到中国，开展面向媒体、公众的系列推广活动。宝马集团董事长齐普策（Oliver Zipse）表示：“氢是一种用途多样的能源，在能源转型和气候保护方面至关重要。氢是储存和运输可再生能源最有效的方式之一，我们应当利用这种极具潜力的技术来加速移动出行的转型。在清晰的电动化战略指引下，宝马氢燃料电池车将为豪华车细分市场增添可持续出行的全新选择，丰富宝马的新能源产品组合，进一步实现向零排放出行的多元化转型。据悉，宝马iX5 Hydrogen氢燃料电池车集成了氢燃料电池技术与第五代宝马eDrive电力驱动技术。独特的驱动系统由两个储氢罐、一个燃料电池和电机构成。供应燃料电池所需的氢气储存在两个由碳纤维增强型复合材料制成的700巴压力罐中。这两个压力罐总共可容纳近6千克的氢气。宝马iX5 Hydrogen氢燃料电池车最大输出功率可达295千瓦（401马力），6秒内完成百公里加速。其中，高性能燃料电池可连续输出125千瓦（170马力）的电能。在WLTP工况下，宝马iX5 Hydrogen氢燃料电池车可以达到504 公里的最大续航里程，充满储氢罐只需要3-4分钟的时间。上易车App搜索“超级评测”，看专业、硬核、全面的汽车评测内容。

形容词作定语修饰名词，通常都是放在名词前面。

有，意大利品牌，网球选手弗格尼尼和巴希拉什维利都是穿这家品牌赞助的衣服。他家最典型的就是骷髅头形象，算是潮牌了。

hydrogencyanide的例句是：Solet"shydrogencyanideasourfirstexample.那么让我们以氰化氢为第一个例子。Theadditionreactionwithhydrogencyanideisbase-catalysed.与氰氢酸的加成是碱催化的。IfacherryPIPischewed,crushed,orsomehowdamaged,itautomaticallyproduceshydrogencyanide.一旦樱桃核被咀嚼或咬碎了，他就会自动产生氢氰酸。hydrogencyanide的例句是：Solet"shydrogencyanideasourfirstexample.那么让我们以氰化氢为第一个例子。Theadditionreactionwithhydrogencyanideisbase-catalysed.与氰氢酸的加成是碱催化的。IfacherryPIPischewed,crushed,orsomehowdamaged,itautomaticallyproduceshydrogencyanide.一旦樱桃核被咀嚼或咬碎了，他就会自动产生氢氰酸。hydrogencyanide的英英释义是Noun:ahighlypoisonousgasorvolatileliquidthatsmellslikebitteralmonds;becomesagasatarounddegreeFahrenheitandismostdangerouswheninhaled;theanhydrideofhydrocyanicacid;usedinmanufacturing。hydrogencyanide的意思是[无化]氰化氢。一、英英释义点此查看hydrogencyanide的详细内容Noun:ahighlypoisonousgasorvolatileliquidthatsmellslikebitteralmonds;becomesagasataround90degreeFahrenheitandismostdangerouswheninhaled;theanhydrideofhydrocyanicacid;usedinmanufacturing二、网络解释1.氰化氢：本标准是为工作场所有害因素职业接触限值配套的监测方法,用于监测工作场所空气中无机含氮化合物[包括一氧化氮(Nitrogenmonoxide,Nitricoxide)、二氧化氮(Nitrogendioxide)、氨(Ammonia)、氰化氢(Hydrogencyanide)、氢氰酸(Cyanicaci2.2.氢氰酸：猎户星座光谱的一个独特的特性是光谱的丰富性:这保证了能够在丰富的分子中,识别出水、一氧化碳(carbonmonoxide)、甲醛(formaldehyde;也称福尔马林)、甲醇(methanol)、二甲醚(dimethylether)、氢氰酸(hydrogencyanide)、硫氧化物(sulphuro3.氢氰酸农药/杀虫剂,杀鼠剂：368HYDROCORTISONE氢化可的松兽医药/甾类抗炎药物|369HYDROGENCYANIDE氢氰酸农药/杀虫剂,杀鼠剂|370HYDROGENPHOSPHIDE磷化氢农药/杀虫剂,杀鼠剂4.(二六)氰化氢：(二五)氯Chlorine|(二六)氰化氢Hydrogencyanide|(二七)溴甲烷Methylbromide三、例句Solet"shydrogencyanideasourfirstexample.那么让我们以氰化氢为第一个例子。Theadditionreactionwithhydrogencyanideisbase-catalysed.与氰氢酸的加成是碱催化的。IfacherryPIPischewed,crushed,orsomehowdamaged,itautomaticallyproduceshydrogencyanide.一旦樱桃核被咀嚼或咬碎了，他就会自动产生氢氰酸。hydrogencyanide的相关临近词hydrogen、hydrogenion点此查看更多关于hydrogencyanide的详细信息

1是氢的原子序数、H是氢的元素符号、Hydrogen是氢的英文名称、1.00794是氢的相对原子量

hydrogen [u02c8haidru0259udu0292u0259n]氢; 氢气

你可知道呀》？

氢气的意思

hydrogen n.氢gasn.气体, 煤气, 毒气, 汽油, [矿]瓦斯abbr.[军] Gunners Auxiliary-Sight, 炮长辅助瞄准镜hydrogen gas应为氢气。

真想学英语的都不会这么弄！邪音！！

nitrogen:奈（第一声）车真（车真二字连读速读）hydrogen:嗨绝真（绝真二字连读速读）civilian:色（轻音）v诶（二字速读诶的拼音念成i而不是ei尽量念成轻音）利嗯（速读）

硫化氢（H2S），两个氢原子一个硫原子（分子量34）

hydrogencyanide的读音是：。hydrogencyanide的读音是：。hydrogencyanide的英英释义是Noun:ahighlypoisonousgasorvolatileliquidthatsmellslikebitteralmonds;becomesagasatarounddegreeFahrenheitandismostdangerouswheninhaled;theanhydrideofhydrocyanicacid;usedinmanufacturing。hydrogencyanide的例句是Solet"shydrogencyanideasourfirstexample.那么让我们以氰化氢为第一个例子。Theadditionreactionwithhydrogencyanideisbase-catalysed.与氰氢酸的加成是碱催化的。IfacherryPIPischewed,crushed,orsomehowdamaged,itautomaticallyproduceshydrogencyanide.一旦樱桃核被咀嚼或咬碎了，他就会自动产生氢氰酸。一、英英释义点此查看hydrogencyanide的详细内容Noun:ahighlypoisonousgasorvolatileliquidthatsmellslikebitteralmonds;becomesagasataround90degreeFahrenheitandismostdangerouswheninhaled;theanhydrideofhydrocyanicacid;usedinmanufacturing二、网络解释1.氰化氢：本标准是为工作场所有害因素职业接触限值配套的监测方法,用于监测工作场所空气中无机含氮化合物[包括一氧化氮(Nitrogenmonoxide,Nitricoxide)、二氧化氮(Nitrogendioxide)、氨(Ammonia)、氰化氢(Hydrogencyanide)、氢氰酸(Cyanicaci2.2.氢氰酸：猎户星座光谱的一个独特的特性是光谱的丰富性:这保证了能够在丰富的分子中,识别出水、一氧化碳(carbonmonoxide)、甲醛(formaldehyde;也称福尔马林)、甲醇(methanol)、二甲醚(dimethylether)、氢氰酸(hydrogencyanide)、硫氧化物(sulphuro3.氢氰酸农药/杀虫剂,杀鼠剂：368HYDROCORTISONE氢化可的松兽医药/甾类抗炎药物|369HYDROGENCYANIDE氢氰酸农药/杀虫剂,杀鼠剂|370HYDROGENPHOSPHIDE磷化氢农药/杀虫剂,杀鼠剂4.(二六)氰化氢：(二五)氯Chlorine|(二六)氰化氢Hydrogencyanide|(二七)溴甲烷Methylbromide三、例句Solet"shydrogencyanideasourfirstexample.那么让我们以氰化氢为第一个例子。Theadditionreactionwithhydrogencyanideisbase-catalysed.与氰氢酸的加成是碱催化的。IfacherryPIPischewed,crushed,orsomehowdamaged,itautomaticallyproduceshydrogencyanide.一旦樱桃核被咀嚼或咬碎了，他就会自动产生氢氰酸。hydrogencyanide的相关临近词hydrogen、hydrogenion点此查看更多关于hydrogencyanide的详细信息