第二版应用化学专业英语课后答案

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应用化学专业英语 -化合物命名

醇
酚类命名法
硫醇和硫酚
酮的命名法Biblioteka 根基命名法：醚类命名
羧酸命名
CH3-CH2-CH(CH3)-CH3 2-methylbutane
2,2-dimethylpropane CH3CH(CH3)-CH2-CH(C2H5)-CH(CH3)-CH2-CH3 4-ethyl-2,5-dimethylheptane
除了系统命名法，有一些支链烷烃是可以采用普通命名法来命名的
化合物的英语命名 Nomenclature of compounds
樊海梅
LOGO
有机化合物的命名
链烃
饱和烃：烷烃不饱和烃：烯烃，炔烃脂环烃芳香烃
烃
有机物
环烃
卤代烃
烃的衍生物
醇
含氧衍生物
酚醛酮羧酸
酯等
烷烃(alkanes) 直链烷烃：英文名称除了含1到4个碳原子以外，其余均用希腊
90 alkane:nonacontane
100 alkane:hectane
含支链烷烃和烷基烷基：只需要把烷烃的后缀ane换成-yl加在相应烷烃的字首后如：CH3- methyl CH3-CH2- ethyl CH3-(CH2)9-CH2 undecyl
还有一些烷基也可以在相应的烃名前加iso-(异)、sec-仲、tert-叔、
CH3CH2-C(CH3)2-CH3:
烯烃(alkene)和炔烃(alkynes):将相应的烷烃的词尾(ane)改为
ene和yne，名称前加上不饱和键的编号，如：乙烯 ethene 丁烯 butene 乙炔 HC≡CH ethyne 丁二炔 HC ≡C-C ≡CH butadiyne

应用化学专业英语及答案

黄冈师范学院2009—2010学年度第一学期期末试卷考试课程：专业英语考核类型：考试A卷考试形式：闭卷出卷教师：杨一思考试专业：化学考试班级：应用化学200601 一、Translate the following into English（20 points）1.过滤2.浓缩3.结晶化4.吸附5. 蒸馏6．超临界的7.二氯甲烷8.热力学平衡9.亲电性10.表面张力11.共轭的12.酮13.平衡常数14.丙基15.丁基16.亚甲基18.环己酮19.同位素20.标准熵二、Translate the following into Chinese（20 points）1. methyl propanoate2. rate constant3. ethyl methyl ketone4. free energy5. radical intermediate6. isobutyl methyl ether7. 3-chloropropene8. primary radical9. n-propyl bromide10. bond energy 11. circulating electrons12. local magnetic fields13. tetramethylsilane14. mass to charge ratios15 phenylamine16 amide17. amine18. nucleophile19. perchlorate20. carbocation三、Translation the following into chinese （40 points）A卷【第1页共 3 页】1. We can see why benzene is stable: according to resonance theory, the more resonance forms a substance has, the more stable it is. Benzene, with two resonance forms of equal energy, is therefore more stable and less reactive than a typical alkene.2. Membranes can be defined essentially as barrier, which separates two phases and restricts transport of various chemicals in a selective manner. A membrane can be homogenous or heterogeneous, symmetric or asymmetric in structure, solid or liquid, can carry a positive or negative charge or be neutral or bipolar. Transport through a membrane can be effected by convection or by diffusion of individual molecules, induced by an electric field or concentration, pressure or temperature gradient. The membrane thickness may vary from as small as 100 micron to several mms.3. The most common industrial adsorbents are activated carbon, silica gel, and alumina, because they present enormous surface areas per unit weight.A surface already heavily contaminated by adsorbates is not likely to have much capacity for additional binding, but further heating will drive off these compounds to produce a surface with high adsorptive capacity.Temperature effects on adsorption are profound, and measurements are usually at a constant temperature. Graphs of the data are called isotherms. Most steps using adsorbents have little variation in temperature.A卷【第2页共 3 页】4. In the absence of peroxides, hydrogen bromide adds to peopene via the Markovnikov pathway to yield isopropyl bromide. In the presence of peroxides, however, the order of addition is reversed, and the product is n-propyl bromide; the addition in this case is said to be anti-Markovnikov. This is interpreted in terms of initiation of the addition reaction by bromine atom, rather than by a proton, as is the case for electrophilic addition.四、Translate the following paragraphs into Chinese（20 points）1．Benzene and its derivatives can be nitrated using a mixture of concentrated nitric and sulphuric acid. The temperature must be controlled to prevent more than one nitro-group going in.2. Benzene can be made to react with halogen derivatives using aluminium chloride as a catalyst. This is called a Friedel-Crafts reaction.can be sulphonated by reacting it with fuming sulphuric acid(oleum). The benzene reacts with sulphur trioxide in the oleum.benzene is converted into ethylbenzene by reacting it with ethene. The ethylbenzene (also called styrene) is used to make polystyrene.黄冈师范学院2009—2010学年度第一学期期末试卷参考答案及评分标准考试课程：专业英语考核类型：考试A卷考试形式：闭卷出卷教师：杨一思考试专业：化学考试班级：应用化学200601 一、Translate the following into English（20 points）2. concentrate 4. adsorption chlorideequilibriumtensionconstant14. propylmagneticresonanceentropy二、Translate the following into Chinese（20 points）1. 丙酸甲酯2. 速率常数3. 甲乙酮4. 自有能5. 自由基中间体6. 异丁基甲醚7. 3-氯丙烯8. 伯自由基9. 正丙基溴化10. 键能11.循环电子12. 局部电磁场13. 四甲基硅烷14. 质荷比15.苯胺16.氨基化合物17.胺18亲核试剂19.高氯酸盐20.碳正离子三、Translation the following into chinese （50 points）1．依据共振理论，物质具有的共振式越多就越稳定。

应用化学专业英语-Lesson-2..

1. Dalton’s Atomic Theory (1808)
• Elements are composed of extremely small particles called atoms. All atoms of a given element are identical. The atoms of one element are different from the atoms of all other elements.
• Compounds are composed of atoms of more than one element.
• Chemical reactions involve only the rearrangement of atoms; atoms are not created or destroyed in chemical reactions.
• Protons and neutrons are located in the nucleus of the atom, which is small. Most of the mass of the atom is due to the nucleus.
• Electrons are located outside of the nucleus. Most of the volume of the atom is due to electrons.
Some Complex Ions
Name Carbonate Nitrate Phosphate Dihydrogen Phosphate Sulfate Sulfite Thiosulfate Perchlorate Chlorite Cyanide Chromate

应用化学专业英语课后练习题含答案

Answer: True.
5.A heterogeneous mixture is one in which the components are evenly distributed throughout.
Answer: False.
Short answer
4.What is the difference between an acid and a base?
Answer: An enzyme is a protein that acts as a catalyst in a biological reaction, lowering the activation energy required for the reaction to occur.
6.What is a heterogeneous mixture?
4.What is the definition of a chemical reaction?
Answer: A chemical reaction is a process in which one or more substances are transformed into different substances through the breaking and forming of chemical bonds.
Chapter 2
True or False
3.The pH scale is a measure of the concentration of hydrogen ions in a solution.
Answer: True.
4.A catalyst is a substance that changes the rate of a chemical reaction without being consumed in the reaction itself.

应用化学专业英语朱红军第二版课文翻译

应用化学专业英语朱红军第二版课文翻译Unit 7 Physical ChemistryPhysical chemistry is the study of the physical basis of chemical systems and processes. Modern physical chemistry is firmly grounded upon physica. Important areas of study include chemical thermodynamics, chemical kinetics, quantum chemistry, statistical mechanics, electrochemistry, surface and solid state chemistry, and spectroscopy.物理化学是对化学系统和过程的物理基础的研究。

现代物理化学以物理为基础。

重要的研究领域包括化学热力学、化学动力学、量子化学、统计力学、电化学、表面和固体化学以及光谱学。

We have repeatedly referred to the energy effects accompanying chemicaland physical changes. Thermodynamics is the study of these energy effects in particular, it summarizes the relations between heat, work, and other forms of energy that are involved in all types of changes. The laws of thermodynamics can be used to predict whether a particular chemical or physicaltransformation is theoretically possible under a given set of conditions. Furthermore, if a study shows that a desired change will not occur under the conditions assumed, thermodynamic principles can be used to determine how the conditions can be altered to make the change theoretically possible.我们一再提到伴随着化学和物理变化的能量效应。

第二版应用化学专业英语课后答案

Unit 1 The Roots of ChemistryI. Comprehension.1.C2. B3. D4. C5. BII. Make a sentence out of each item by rearranging the words in brackets.1.The purification of an organic compound is usually a matter of considerabledifficulty, and it is necessary to employ various methods for this purpose.2.Science is an ever-increasing body of accumulated and systematizedknowledge and is also an activity by which knowledge is generated.3.Life, after all, is only chemistry, in fact, a small example of chemistryobserved on a single mundane planet.4.People are made of molecules; some of the molecules in people are rathersimple whereas others are highly complex.5.Chemistry is ever present in our lives from birth to death because withoutchemistry there is neither life nor death.6.Mathematics appears to be almost as humankind and also permeates allaspects of human life, although many of us are not fully aware of this.III. Translation.1.(a) chemical process (b) natural science (c) the technique of distillation2.It is the atoms that make up iron, water, oxygen and the like/and so on/andso forth/and otherwise.3.Chemistry has a very long history, in fact, human activity in chemistry goesback to prerecorded times/predating recorded times.4.According to/From the evaporation of water, people know/realized thatliquids can turn/be/change into gases under certain conditions/circumstance/environment.5.You must know the properties of the material before you use it.IV. Translation化学是三种基础自然科学之一，另外两种是物理和生物。

应用化学专业英语

应用化学专业英语Cu—copper Fe—iron Hg—mercury Na—sodium K—potassium Ag—silverNaOH—sodium hydroxide KOH—potassium hydroxide Fe(OH)2—iron(Ⅱ)hydroxide Fe(OH)3—iron(Ⅲ)hydroxide NH4OH—ammonium hydroxideK3[Fe(CN)6]—potassium hexacyanoferrate(Ⅲ)K4[Fe(CN)6]—potassium hexacyanoferrate(Ⅱ)Ⅰ.Name the following1.(NH4)2CO3Ammonium carbonate2.N2O Nitrous Oxide3.H2SO4Sulfuric acid4.P4O6Phosphorus(Ⅲ)trioxide5.Al2O3Aluminium oxide6.SnCl4Tin(IV)chloride7.KHSO4Potassium hydrogen sulfate8.Cu2S Copper(Ⅰ)sulfide9.HClO4Perchloric acid10.BaCl2Barium chloride11.P4O10Phosphorus(Ⅴ)pentoxide12.NaH Sodium hydride13.Ca(MnO4)2Calcium permanganate14.PF5Phosphorus pentafluoride15.(NH4)2HPO4Diammonium hydrogen phosphateⅡ.Give formulas for the following1.ammonium sulfate(NH4)2SO42.barium iodide BaI23.iron(Ⅱ)sulfate Fe2SO44.potassium permanganate KMnO45.copper(Ⅱ)oxide CuO6.carbonic acid H2CO3Melting point 熔点boiling point 沸点1.Which particles play the most active role in chemical bonding?(a)electrons (b)neutrons (c)protons (d)valence electrons2.An ionic bond is formed when electrons are:(a)completely destroyed (b)compeltely transferred (c)divied (d)equally shared3.Due to the that Ionic compounds have strong intermolecular forces they are at room temperature.(a)bonded covalently (b)gases (c)liquids(d)solids 1-butene trans -2-butenecis -2-butene iso -butene (E )-2-butene (Z )-butene 2-methylpropene1.Draw structure that correspond to the following names.(a)2,2-dimethylpentane (b)4-isobutyl-2,5-dimethylheptane (c)(Z)-3-menthyl-2-octene (d)(2R,3S)-2,3-pentanediol2.Give the IUPAC name for each of the following structures.(e)(f)(E)-1-methyl-4-ethylcyclohexane(g)(h)(S)-2-chloro-butyraldehyde (2R,3R)-2,3-dichlorobutyric acid补充：(E)-2-chloro-3-methyl-2-octene Nucleophile亲核试剂carbocation碳阳离子Compressible可压缩的incompressible不可压缩的1.A chemical system can be studied from either a or a(n)viewpiont.(A)physical...chenical(B)molecual...atomic (C)Microscopic...macroscopic(D)Mechanic...kinetic2.Is a macroscopic science that studies the interrelationships between the various equilibrium properties of a stystem.(A)Kinetics(B)Thermodynamics (C)Statistical mechanics(D)Quantum chenistry3.In,the molecular and macroscopic levels are related to each other.(A)quantum(B)statistical(C)thermodynamics(D)kinetics4.thermodynamics studies.(A)heat,work,energy,and the changes they produce in the states of systems(B)The relationships between the molecules of a system(C)heat,work,temperature,and the energy they produce in the states of systems(D)heat,energy,and work5.For a(n)system,neither matter nor energy can be transferred between system and surroundings.(A)closed(B)open(C)isolated(D)none of the aboveⅠ.Translate the following from English into Chinese.(1)pollution of the atmosphere(2)nondegradable pollutant大气污染不可降解污染物(3)harmless pollutant(4)interacting chemicals无害污染物相互作用的化学物质(5)threshold level(6)sound pressure level限定值，阈值声压水平(7)speech interference(8)transmission path 语音干扰传输途径Translate the following from Chinese into English.(1)定性分析qualitative analysis (2)分析物analyte (3)准确度accuracy (5)反应速率reaction-rate (5)解吸附作用deserption (6)吸附absorption conduction 热传导convection 对流radiation 辐射Balance and classify each of the following chemical equations as a (1)combination reactions ,(2)decomposition reaction ,(3)displacement reaction ,or (4)partner-exchange reaction.(a))()(2243l O H s Fe H O Fe +→+)(4)(342243l O H s Fe H O Fe +→+displacement reaction 置换反应(b))()()(23g O s KCl s KClO +→)(3)(2)(223g O s KCl s KClO +→decomposition reaction 分解反应(c)steam and hot carbon react to form gasecous hyfrogen and gaseous carbon monoxide.)()()()(22g CO g H s C l O H +→+displacement reaction 置换反应(d))()()(4272aq HClO g O H g O Cl →+)(2)()(4272aq HClO g O H g O Cl →+combination reactions 化合反应(e))()()(22aq HBrO aq HBr O H l Br +→+)()()(22aq HBrO aq HBr O H l Br +→+decomposition reaction 分解反应(f))()()()()(43442243aq PO H s CaSO aq SO H s PO Ca +→+)(2)(3)(3)()(43442243aq PO H s CaSO aq SO H s PO Ca +→+partner-exchange reaction 复分解反应(g)Potassium reacts with water to give aqueous potassium hydroxide and gaseous hydroxide.)()(2)(2)(222g H aq KOH l O H s K +→+displacement reaction 置换反应(h)Solid magnesium carbonate decomposes to form solid magnesium oxide and gaseous carbon monoxide.)()()(23g CO s MgO s MgCO +→decomposition reaction 分解反应Abstract 摘要Results and discussion 结果与讨论Experimental实验References参考文献E-factor影响因素Journal of the American Chemical Society美国化学会志Journal of the Chemical Society化学会志Journal of Organic Chemistry有机化学杂志Tetrahedron四面体'\.._/ ( Wb川ache mical reaction?Acherr山al react i on occurs when subs'孟忘"(tlie reactants) collide （碰撞） with enough energy to rearrange to form different compounds （由e produc时． η1e change in energy由at occurs when a reaction take place is described by thermodynamics （热力学） and the rate or speed at which a reaction occ u rs is described by kfaetics （动力学） . Reactions in which the reactants and produc臼coexist are considered to be in equ山brium （处于平衡）. A chemical equation consists of the chemical formula （化学式） of the reactants，且目the chemical formula of the products. The two are separated by an 一一－ usually read as ”yielas·’and each chemical formula is separated from others by a plus sign （加号） . Sometimes a triangle is drawn over the arrow symbol to denote energy must be added to the substances for the reaction to begin. Each chemical formula may be preceded by a scalar （数量的） coefficient ind i cating the proportion （比例） of that substance necessary to produce the reaction in formula. For instance, the formula for the burning of methane (C比＋ 202 →C02 + 2H20) indicates that twice as much 02 as C比is needed, and when they react, twice as much H20 as C02 will be produced.η1is is because during the reaction, each atom of carbon needs exactly two atoms of oxygen to combine with, to produce the C02, and every two atoms of hydrogen need an atom of oxygen to combine with to produce the H20. If the proportions of t he reactants are not respected, when they are forced to react, either not all of the substanc e used will participate in the react i on, or the react i on that will take p l ace will be different from the one noted in the equation.。

应用化学专业英语第二版万有志主编版(课后答案和课文翻译)

应用化学专业英语第二版万有志主编版(课后答案和课文翻译)If the mass of a 12C atom is exactly 12 amu,then the mass of a 1H atom to five significant figures must be 1.0078 amu. 12 amu x 0.083986 = 1.0078 amu（2）First we calculate k and then use the first-order rate equation.[][]()()404340.6931.2110/5730log2.3031.000 1.2110/log0.477 2.3032.303log 2.09 6.11061001.2110/k yryrA ktA yrt t yr yr---==⨯=⨯===⨯=⨯The bone was tossed away (more precisely, the animal whose bone was died) about 6100 years ago, or about 4100 B.C. We can thus be sure that a village was in existence at that place at that time.Unit 7 The Nomenclature of Inorganic SubstancesI. Comprehension1.A2.B3.C4.C5.BII. Give the systematic name for the followingammonium ion ; copper(II) ion ; strontium ion; Ccopper(I) ion; iron(II) ion; zinc ion; hydrogen ion; lead((II) ion; aluminum;silver ion; magnesium ion; chromium(III) ion; Barium ; Manganese(II) ion; iron(III) ion; calcium ion; mercury(II) ion; chromium(II) ion; tin(II) ion.carbon monoxide; ditrogen trioxide; carbon dioxide; diphosphorus pentoxide; sulfur trioxide; dichlorine heptoxidearsenate ion; sulfite ion; hydride ion; arsenite ion; bromide ion; hydroxide ion; phosphate ion; chlorate ion; hypochlorite ion; phosphate ion; chloride ion; iodate ion; carbonate ion; chlorite ion; nitrate ion;chromate ion; cyanide ion; iodide ion;dichromate ion; fluoride ion; nitrate ion;oxide ion; hydrogen carbonate ion; nitrite ion;sulfide ion; hydrogen sulfate ion; perchlorate ion;sulfate ion; hydrogen sulfite ion; permanganate ion.III. Complete the table.Formula Old name SystematicnameFeO iron (II) oxide Fe2O3iron (III) oxide Sn(OH)2tin(II)hydroxideSn(OH)4tin(IV)hydroxideHg2SO4mercury (I)sulfateHgSO4mercury (II)sulfate NaCLO sodiumhypochloriteK2Cr2O7potassiumdichromateCu3(AsO4)2copper(II)arsenateCr(C 2H 3O 2)3 chromium(IV) acetateIV . Acid names may be obtained directly from its acid ion by changing the name of the acid ion (negative ion). Use the rule to give the name of the following acid. Formula of acid Old name Name of acid H 2CO 3 carbonic acid HClO 2 chlorous acid HClO 4 perchloric acid HCN hydrocyanic acid HBr hydrobromic acid H 4SiO 4 silicic acid H 3AsO 4 arsenic acid V . Complete the sentences with the proper form of the word given at the end of the sentence.1.is altered;2.To illustrate3.indicates4.should expect5.would cancel6. are pulled7.depend on8.are; referred9.formed 10.have discussed VI. Translation1. Matter can neither be created nor be destroyed/eliminated.2. It is necessary that a scientist must know how to use fingures to get an accutate answer to question.3. Any substance is made of atoms whether it is solid, liquid or gas.4. The experiment was successful. It ’s results was the same as what we had expected.5. It will not be long before we finish the experiment.VII. Write equations for the following acid-base reactions. Use the information in inorganic textbook to predict whether the equilibrium will favor the reactants or the products. (Partially Solved)Solutin to (a): Cyanide is the conjugate base of HCN. It can accept a proton from formic acid:COHHO +CN C OH OC NH +formic acid stronger acid cyanidestronger base formate weaker baseweaker acidReading from inorganic textbook, formic acid (p K a =3.76) is a stronger acid than HCN (p K a =9.22), and cyanide is a stronger base than formate. The products (weaker acid and base) are favored. …………..VIII. Write equations for the net reactions which occur when the following materials are added to a sodium-ammonia solution.Answer: (1) 2CH3GeH3 + 2e am-→ H2 + 2CH3GeH2-(2) I2 + 2e am-→ 2I-(3) (C2H5)2S + 2e am- + NH3 → C2H5S- + C2H6 + NH2-Unit 10 Nomenclature of HydrocarbonsI. Comprehension1.C2.D3.B4.A5.B6.BII. Name the following compounds by the IUPAC system1 CH3(CH2)nCH3 (n=2, 3, 4, 6, respectively) butane, pentane, hexane,octane2 (CH3)2-CH2-CH2-CH2-CH32-methylpentane3 (CH3)3C-CH2-CH(C2H5)-CH2-CH34-ethyl-2,2-dimethylhexane5-isopropyl-2-methyloctane4 (CH3)2CH-CH2CH2-CH(CH2CH2CH3)-CH(CH3)24-isopropyl-4-propylheptane 5 CH3-CH2-CH2-C(CH2CH2CH3)2-CH(CH3)26 ◇-CH2-CH(CH3)2isobutylcyclobutane7 CH2=C(C2H5)(CH(CH3)2) 2-ethyl-3-methyl-1-butene8 CH3-CH2-CH=CH-CHCl-CH32-chloro-3-hexene9 CH3-CH(CH3)-CH(C2H5)-C≡C-CH34-ethyl-5-methyl-2-hexyneCH2=CH-C≡CH 1-buten-3-yne11(CH3)2CH-CH2CH(OH)CH34-methyl-2-pentanol12CH3CH2CH=CHCH(OH)CH33-hexen-2-ol13(CH3)3C-OH 2-methyl-2-propanol14(CH3)3C-OCH2H52-ethoxy-2-methylpropane15(CH3)2CH-CH2-O-C2H51-ethoxy-2-methylpropane16(CH2OH)21,2-ethanediol17CH3-CH(OH)-CH2(OH) 1,2-proanediol18CH2(OH)-CH(OH)-CH2(OH) 1,2,3-propanetriol19CH3CH2NH2aminoethane2 0 CH3CH2CH2CH(CH3)CH-NH-CH3N-methyl-1-amino-2-methylpentaneIII. Draw structures for the following compounds.1 3-octene C-C-C=C-C-C-C-C2 3-methy-2-heptene3 cyclohexene4 2-pentyne C-C≡C-C-C5 3,3-dimethylhexyne6 3-bromotolueneCH3Br7 vinyl chloride C=C-Cl8 acetylene C≡C9 para-dichlorobenzeneCl Cl10 m-chlorobromobenzeneBrCl11 toluene CH312 chlorobenzene Cl13 1,2-dibromobenzeneBrBr14 naphthalene15 anthracene16 phenanthrene17 2-methyl-1-propanol C CC OHC18 Cyclohexanol OH19 Methoxyethene C C O C20 trans-2-ethoxycyclohexanol OHOC2H5IV. Decide which item best completes each unfinished sentence.1.A2.A3.B4.CV. Each of the following names is incorrect. Draw the structure represented by the incorrect name (or a consistent structure if the name is ambiguous), and give your drawing the correct name.(…………)Unit 11 Carboxylic Acids and Their DerivativesI. Comprehension1.B2.B3.C4.D5.A6.CII. Fill in the blanks with the phrases given below.1.brought out2.dozen or so; put together3.are made of ;divided by4.are different from5.on the contrary; consist of6.summed up7.stand for8.such as9.are; dependent on 10.break down intoIII. Put in proper prepositions or adverbs into the blanks.1.with; as2.to3.about4.from5.intoIV. Translation1. Similarly, solvent also may not be liquid matter but the others2. A graph plotting solubility against temperature is called a solubility curve. ( The curve plot drawn (made / produced) by solubility as one coordinate and temperature as another coordinate is called solubility curve.)3. Air is mixture of gases , the most abundant of which is nitrogen in the form of N2 (molecules).4. The direction of the reaction and the position of the equilibrium may also be affected by the temperature, pressure, and other conditions.5. Hydrogen has a great affinity for oxygen and easily combines with it to form water.V. Translation玻意尔（Bohr）模型提出不久后，人们就发现原子中的电子比Bohr提出的模型要复杂得多。

应用化学专业英语（课后答案和课文翻译）

Unit 1 The Roots‎of Chemi‎s tryI. Compr‎e hens‎i on.1.It can be infer‎red from this artic‎l e which‎one of the follo‎wi ng items‎i s not mainl‎y based‎on pract‎i c al use C. Greek‎chemi‎s try2. It was B. Emped‎o cles‎s who first‎i ntro‎d uced‎the idea that all thing‎s are not forme‎d from just one eleme‎n t.3. In the devel‎o pmen‎t of Greek‎chemi‎s t ry, D. Democ‎ri tus‎ was the first‎ one defin‎i ting‎the ultim‎ately‎const‎i tuen‎t s of matte‎r?4. Accor‎d i ng to Plato‎, there‎are B. 4 ―eleme‎n ts‖ whose‎faces‎are const‎i tute‎d by regul‎a r polyg‎ons.5. In the last parag‎raph,autho‎rs think‎that exper‎i ment‎ DD.can deal with the react‎i ons by which‎one subst‎a n ce is conve‎rted into anoth‎e rII. Make a sente‎n ce out of each item by rearr‎a ngin‎g the words‎in brack‎e ts.1.The purif‎i cati‎o n of an organ‎i c compo‎u nd is usual‎l y a matte‎r of consi‎d erab‎l e diffi‎c ulty‎, and itis neces‎s ary to emplo‎y vario‎u s metho‎d s for this purpo‎s e.2.Scien‎c e is an ever-incre‎a sing‎body of accum‎u late‎d and syste‎m atiz‎e d knowl‎e dge and is also anactiv‎i ty by which‎knowl‎e dge is gener‎a ted.3.Life, after‎all, is only chemi‎s try, in fact, a small‎examp‎l e of chemi‎s try obser‎v ed on a si ngl‎emunda‎n e plane‎t.4.Peopl‎e are made of molec‎ul es; some of the molec‎ul es in peopl‎e are rathe‎r simpl‎e where‎a sother‎s are highl‎y compl‎e x.5.Chemi‎st ry is ever prese‎n t in our lives‎from birth‎to death‎becau‎se witho‎u t chemi‎s t ry there‎i sneith‎e r life nor death‎.6.Mathe‎m atic‎s appea‎rs to be almos‎t as human‎ki nd and also perme‎a tes all aspec‎t s of human‎life,altho‎u gh many of us are not fully‎aware‎of this.III. Trans‎l atio‎n.1.(a)化学过程；(b)自然科学；（c）蒸馏技术(a) chemi‎c al proce‎s s (b) natur‎a l scien‎ce (c) the techn‎i que of disti‎l lati‎o n2.正是原子构‎成铁、水、氧等。

化学与应用化学专业英语第二版王幸宜答案

化学与应用化学专业英语第二版王幸宜答案1、—Can you play the violin at the art festival?—No, I ______. But I am good at playing the drums.（）[单选题] *A. canB. can’t(正确答案)C. doD. don’t2、—Whose book is it? Is it yours?—No, ask John. Maybe it’s ______.（）[单选题] *A. hersB. his(正确答案)C. he’sD. her3、The idea of working abroad really（）me. [单选题] *appeals to (正确答案)B. attaches toC. adapts toD. gets across4、20．Jerry is hard-working. It’s not ______ that he can pass the exam easily. [单选题] *A．surpriseB．surprising (正确答案)C．surprisedD．surprises5、I used to take ____ long way to take the bus that went by ____ tunnel under the water. [单选题] *A. a, aB. a. theC. a, /(正确答案)D. the, a6、59．—Can I talk to the manager?—Please wait ________ minute. [单选题] *A．anB．a(正确答案)C．theD．/7、There is _______ meat in the fridge.Lets go and buy some. [单选题] *A. little(正确答案)B. a littleC. fewD. a few8、Reading（）the lines, I dare say that the government are more worried than they admitted. [单选题] *A. behindB. between(正确答案)C. alongD. among9、Mum is ill. I have to _______ her at home. [单选题] *A. look after(正确答案)B. look forC. look outD. look forward to10、50．—The sweater is not the right ________ for me.—Well, shall I get you a bigger one or a smaller one? [单选题] *A．priceB．colorC．size(正确答案)D．material(材料)11、Stephanie _______ going shopping to staying at home. [单选题] *A. prefers(正确答案)B. likesC. preferD. instead12、I had _______ egg and some milk for breakfast this morning. [单选题] *A. aB. an(正确答案)C. theD. /13、The beautiful sweater _______ me 30 dollars. [单选题] *A. spentB. paidC. cost(正确答案)D. took14、He spoke too fast, and we cannot follow him. [单选题] *A. 追赶B. 听懂(正确答案)C. 抓住D. 模仿15、8．Turn right ________ Danba Road and walk ________ the road, then you will findMeilong Middle school. [单选题] *A．in...alongB．into...along (正确答案)C．in...onD．into...on16、27．Will it ______ warm in the room? [单选题] *A．areB．be(正确答案)C．isD．going to be17、How many subjects are you _______ this year? [单选题] *A. takesB. takeC. taking(正确答案)D. took18、Some students are able to find jobs after graduation while _____will return to school for an advanced degree. [单选题] *A. otherB. anotherC. others(正确答案)D. the other19、_____you may do, you must do it well. [单选题] *A.WhichB.WheneverC.Whatever(正确答案)D.When20、The boy’s mother always _______ him a story before he goes to bed. [单选题] *A. saysB. speaksC. tells(正确答案)D. talks21、14．Builders have pulled down many old houses, and they will build a lot of new ________. [单选题] *A．ones (正确答案)B．oneC．the onesD．the one22、_______ travelers come to visit our city every year. [单选题] *A. Hundred ofB. Hundreds of(正确答案)C. Five HundredsD. Five hundred?of23、He has made a lot of films, but ____ good ones. [单选题] *A. anyB. someC. few(正确答案)D. many24、_______ hard, _______ you’ll fail in the exam. [单选题] *A. Studying; forB. Study; or(正确答案)C. To study; andD. Study; and25、Simon does not（）his fellow workers because they often argue over trivial matters. [单选题] *A. get on with(正确答案)B. come up withC. do away withD. go on with26、93．Welcome ________ our school! [单选题] *A．to(正确答案)B．inC．atD．/27、Study hard, ______ you won’t pass the exam. [单选题] *A. or(正确答案)B. andC. butD. if28、They took _____ measures to prevent poisonous gases from escaping. [单选题] *A.efficientB.beneficialC.validD.effective(正确答案)29、43．How much did you ________ the man for the TV? [单选题] *A．pay(正确答案)B．takeC．spendD．buy30、I’m still unable to make myself_____in the discussion, which worries me a lot. [单选题]*A.understandB.understood(正确答案)C.understandingD.to be understood。

应用化学专业英语第二版Unit 5答案

应用化学专业英语第二版Unit 5答案1、6．Hi, boys and girls. How are you ________ your posters for the coming English Festival at school? [单选题] *A．getting onB．getting offC．getting with (正确答案)D．getting2、Two（）in our school were sent to a remote village to teach for a month. [单选题] *A. women teachers(正确答案)B. woman teachersC. women teacherD. woman teacher3、_____ the project, we'll have to work two more weeks. [单选题] *A. CompletingB. CompleteC. Having completedD.To complete(正确答案)4、Your homework must_______ tomorrow. [单选题] *A. hand inB. is handed inC. hands inD. be handed in(正确答案)5、No writer will be considered（）of the name until he writes a work. [单选题] *A. worthlessB. worthy(正确答案)C. worthwhileD. worth6、The Titanic is a nice film. I _______ it twice. [单选题] *A. sawB. seeC. have seen(正确答案)D. have saw7、37．It’s fun _________ a horse with your best friends on the grass. [单选题] * A．to ride (正确答案)B．ridingC．ridesD．ride8、( ) No matter _____ hard it may be, I will carry it out. [单选题] *A whatB whateverC how(正确答案)D however9、The manager isn’t in at the moment. May I _______ a message? [单选题] *A. take(正确答案)B. makeC. haveD. keep10、—Can you play tennis?—______. But I can play basketball.（）[单选题] *A. Yes, I canB. Yes, I doC. No. I can’t(正确答案)D. No, I don’t11、—______? —Half a kilo.（）[单选题] *A. How much are theyB. How much is itC. How much would you like(正确答案)D. How many would you like12、16．Lily is a lovely girl. We all want to ________ friends with her. [单选题] *A．haveB．make(正确答案)C．doD．take13、There is something wrong with my teeth. I’ve had?a _______. [单选题] *A. toothache(正确答案)B. headacheC. stomachacheD. heartache14、Our teacher suggested that each of us _____ a study plan for the tong summer vacation. [单选题] *A. make(正确答案)B. madeC. will makeD. would make15、I saw the boy _______?the classroom. [单选题] *A. enter intoB. enter(正确答案)C. to enter intoD. to enter16、_____you may do, you must do it well. [单选题] *A.WhichB.WheneverC.Whatever(正确答案)D.When17、32．Mr. Black is ______ now, so he wants to go to a movie with his son. [单选题] * A．busyB．free(正确答案)C．healthyD．right18、The storybook is very ______. I’m very ______ in reading it. （）[单选题] *A. interesting; interested(正确答案)B. interested; interestingC. interested; interestedD. interesting; interesting19、They might have found a better hotel if they _________ a few more kilometers. [单选题]*A. droveB. would driveC. were to driveD. had driven(正确答案)20、Tony can _______ the guitar.Now he _______ the guitar. [单选题] *A. play; plays(正确答案)B. playing; playingC. plays; is playingD. play; is playing21、—______?—He can do kung fu.（）[单选题] *A. What does Eric likeB. Can Eric do kung fuC. What can Eric do(正确答案)D. Does Eric like kung fu22、I don't know the man _____ you are talking about. [单选题] *A. who'sB. whose(正确答案)C. whomD. which23、Can you tell me how the accident _______? [单选题] *A. came about(正确答案)B. came backC. came downD. came from24、As I know, his salary as a doctor is much higher_____. [单选题] *A. than that of a teacher(正确答案)B. than a teacherC. to that of a teacherD. to a teacher25、76．—Could you tell me ________the bank?—Turn right and it's on your right. [单选题]* A．how get toB．how to getC．how getting toD．how to get to(正确答案)26、I paint a lot of pictures. [单选题] *A. 评论B. 注意C. 悬挂D. 画(正确答案)27、2．The villagers want to have a bridge. Can this dream ________? [单选题] *A．come outB．get awayC．come true(正确答案)D．get out28、Every year Carl _______ most of his time swimming, camping and traveling with his parents. [单选题] *A. is spendingB. spentC. will spendD. spends(正确答案)29、His father always _______ by subway. [单选题] *A. go to workB. go to schoolC. goes to bedD. goes to work(正确答案)30、It is an online platform _____ people can buy and sell many kinds of things. [单选题] *A．whenB. where(正确答案)C．thatD．which。

应用化学专业英语第二版课后练习题含答案

应用化学专业英语第二版课后练习题含答案Chapter OneMultiple Choice Questions1.The scientific method of problem solving consists of___________. A. observation, experimentation, hypotheses, theory B.experimentation, observation, theory, hypotheses C. observation, hypotheses, theory, experimentation D. hypothesis, theory,experimentation, observationAnswer: A2.Which of the following is NOT one of the key steps involvedin the scientific method? A. Formulating hypotheses B. Building experiments C. Rejecting hypotheses D. Proving hypothesesAnswer: D3.Which of the following is a physical property? A. Density B.Flammability C. Reaction with acid D. RustingAnswer: A4.Which subatomic particle carries a positive charge? A.Proton B. Neutron C. Electron D. AtomAnswer: A5.Which of the following is NOT a chemical change? A. Burningof wood B. Digestion of food C. Melting of ice D. Rusting of ironAnswer: CShort Answer Questions1.What is the difference between a chemical and physicalchange? Answer: A physical change is a change in the physicalproperties of a substance, whereas a chemical change is a change in the chemical properties or composition of a substance.2.What is an atom? Answer: An atom is the smallest particle ofmatter that retns the chemical properties of an element.3.What is a molecule? Answer: A molecule is a group of two ormore atoms that are chemically bonded together.4.What is an element? Answer: An element is a pure substancethat cannot be broken down into simpler substances by chemical means.5.What is a compound? Answer: A compound is a pure substancemade up of two or more elements that are chemically bondedtogether.Essay Questions1.What is the scientific method and how is it used to solveproblems in science? Answer: The scientific method is a logical and systematic approach to problem solving in science. It consists of several key steps including observation, hypotheses,experimentation, and theory. Scientists use the scientific method to answer questions and solve problems by gathering data through observation and experimentation, forming hypotheses based on that data, testing those hypotheses through experimentation, andfinally developing theories to expln the results of those experiments.2.Describe the properties of matter and how they are used to differentiate between substances. Answer: Properties of matter can be either physical or chemical. Physical properties include mass, volume, density, color, melting point, boiling point, and solubility. These properties can be used to differentiate between substances by comparing their physical properties. Chemical properties include reactivity, flammability, and toxicity. These properties are used to differentiate between substances based on their chemical behavior under certn conditions.3.Describe the structure of an atom and the role that subatomic particles play in determining chemical behavior. Answer: Atoms have a central nucleus that contns protons and neutrons. Electrons orbit around the nucleus in shells or orbitals. Protons carry a positive charge, electrons carry a negative charge, and neutrons carry no charge. The number of protons in the nucleus determines the element to which the atom belongs, while the number of electrons in the outermost shell determines the chemical behavior of the atom.4.Expln the difference between a mixture and a pure substance. Give examples of each. Answer: A mixture is a combination of two or more substances that are not chemically bonded together. Mixtures can be either homogeneous or heterogeneous. A homogeneous mixture is a uniform mixture where the composition is the same throughout, such as saltwater. A heterogeneous mixture is a non-uniform mixture where the composition varies, such as oil and water. A pure substance is a substance that cannot be broken down into simpler substances by chemical means. Examples of pure substances include elements such as gold and silver, and compounds such as water and carbon dioxide.5.Expln the difference between a physical change and a chemical change. Give examples of each. Answer: A physical change is a change in the physical properties of a substance, such as shape, size, or state of matter, without changing its chemical composition. Examples of physical changes include melting ice, boiling water, and cutting paper. A chemical change is a change in the chemical properties or composition of a substance, resulting in the formation of a new substance or substances. Examples of chemical changes include burning of wood, digestion of food, and rusting of iron.。

化学专业英语课后答案张微

化学专业英语课后答案张微1、The house is well decorated _____ the disarrangement of a few photos. [单选题] *A. exceptB. besidesC. except for(正确答案)D. in addition to2、-Do you have tickets for Friday? -Sorry, we've got _____ left. [单选题] *A. eitherB. none(正确答案)C. no oneD. neither3、How can I _______ the nearest supermarket? [单选题] *A. get offB. get upC. get to(正确答案)D. get on4、--I can’t watch TV after school.--I can’t, _______. [单选题] *A. alsoB. tooC. either(正确答案)D. so5、This kind of banana tastes very _______. [单选题] *A. nice(正确答案)B. wellC. nicelyD. better6、The car is _______. It needs washing. [单选题] *A. cleanB. dirty(正确答案)C. oldD. new7、We _____ three major snowstorms so far this winter. [单选题] *A.hadB. haveC. have had(正确答案)D.had had8、I want something to eat. Please give me a _______. [单选题] *A. bookB. watchC. shirtD. cake(正确答案)9、Either you or the president（）the prizes to these gifted winners at the meeting. [单选题] *A. is handing outB. are to hand outC. are handing outD. is to hand out(正确答案)10、34．My mother isn't in now, but she will be back ______ ten minutes. [单选题] * A．forB．beforeC．in(正确答案)D．at11、28．—Where is Fujian Province?—It’s ________ the southeast of China. [单选题] * A．in (正确答案)B．onC．toD．at12、Betty works as a waitress to earn money for her education. [单选题] *A. 服务员(正确答案)B. 打字员C. 秘书D. 演员13、（）, it would be much more sensible to do it later instead of finishing it now. [单选题] *A. FinallyB. MildlyC. Actually(正确答案)D. Successfully14、There are many_____desks in the room. [单选题] *rge old brown(正确答案)B.old large brownrge brown oldD.brown old large15、You have been sitting on my hat and now it is badly out of（）. [单选题] *A. dateB. shape(正确答案)C. orderD. balance16、How I wish I（）to repair the watch! I only made it worse. [单选题] *A. had triedB. hadn't tried(正确答案)C. have triedD.didn't try17、There is something wrong with my teeth. I’ve had?a _______. [单选题] *A. toothache(正确答案)B. headacheC. stomachacheD. heartache18、Boys and girls, _______ up your hands if you want to take part in the summer camp(夏令营)．[单选题] *A. puttingB. to putC. put(正确答案)D. puts19、—What do you think of Animal World? —______. I watch it every day.（）[单选题] *A. I don’t mind it.B. I like it.(正确答案)C. I can’t stand it.D. I don’t like it.20、______ in the library. （）[单选题] *A. Don’t smokingB. No smokeC. No smoking(正确答案)D. Doesn’t smoke21、I’d like to go with you, ______ I’m too busy. [单选题] *A. orB. andC. soD. but(正确答案)22、We haven't heard from him so far. [单选题] *A. 到目前为止(正确答案)B. 一直C. 这么远D. 这么久23、Mary _______ a small gift yesterday, but she didn’t _______ it. [单选题] *A. accepted; receiveB. received; accept(正确答案)C. receives; acceptedD. accepts; received24、_______ hard, _______ you’ll fail in the exam. [单选题] *A. Studying; forB. Study; or(正确答案)C. To study; andD. Study; and25、Helen is new here, so we know _______ about her. [单选题] *A. somethingB. anythingC. everythingD. nothing(正确答案)26、Although the story is written for children, it can be read by adult, _____. [单选题] *A. alsoB. eitherC. as wellD. too(正确答案)27、At last the plane landed at the Beijing Airport safely. [单选题] *A. 平稳地B. 安全地(正确答案)C. 紧急地D. 缓缓地28、Was（）that I saw last night at the concert? [单选题] *A. it you(正确答案)B. not youC. youD. that yourself29、14．He is cutting the apple ________ a knife. [单选题] *A．inB．toC．with(正确答案)D．by30、I'm sorry I cannot see you immediately. But if you wait, I'll see you_____. [单选题] *A. for a momentB. in a moment(正确答案)C. for the momentD. at the moment。

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自从宇宙大爆炸以来，化学过程持续进行，甚至地球上生命的出现可能也是化学过程的结果。

人们也许认为生命是三步进化的最终结果,第一步非常快,其余两步相当慢。

这三步是：（I）物理进化（化学元素的产生），（II）化学进化（分子和生物分子的形成）；和（III）生物进化（有机物的形成和发展）。

V. Solution:（1）The relative mass of 1H and 12C atoms can be calculated from their absolute masses in grams.1241223H 1.6735100.083986C 1.992610--⨯==⨯ If the mass of a 12C atom is exactly 12 amu,then the mass of a 1H atom to five significant figures must be 1.0078 amu. 12 amu x 0.083986 = 1.0078 amu（2）First we calculate k and then use the first-order rate equation.[][]()()404340.6931.2110/5730log2.3031.000 1.2110/log0.477 2.3032.303log 2.09 6.11061001.2110/k yryrA kt A yrt t yr yr ---==⨯=⨯===⨯=⨯The bone was tossed away (more precisely, the animal whose bone was died) about 6100 years ago, or about 4100 B.C. We can thus be sure that a village was in existence at that place at that time.Unit 7 The Nomenclature of Inorganic SubstancesI. Comprehension1.A2.B3.C4.C5.BII. Give the systematic name for the followingammonium ion ; copper(II) ion ; strontium ion; Ccopper(I) ion; iron(II) ion; zinc ion; hydrogen ion; lead((II) ion; aluminum;silver ion; magnesium ion; chromium(III) ion; Barium ; Manganese(II) ion; iron(III) ion; calcium ion; mercury(II) ion; chromium(II) ion; tin(II) ion.carbon monoxide; ditrogen trioxide; carbon dioxide; diphosphorus pentoxide; sulfur trioxide; dichlorine heptoxidearsenate ion; sulfite ion; hydride ion;arsenite ion; bromide ion; hydroxide ion;phosphate ion; chlorate ion; hypochlorite ion;phosphate ion; chloride ion; iodate ion;carbonate ion; chlorite ion; nitrate ion;chromate ion; cyanide ion; iodide ion;dichromate ion; fluoride ion; nitrate ion;oxide ion; hydrogen carbonate ion; nitrite ion;sulfide ion; hydrogen sulfate ion; perchlorate ion;sulfate ion; hydrogen sulfite ion; permanganate ion.IV. Acid names may be obtained directly from its acid ion by changing the name of the acid ion (negative ion). Use the rule to give the name of the following acid.V. Complete the sentences with the proper form of the word given at the end of the sentence.1.is altered;2.To illustrate3.indicates4.should expect5.would cancel6. are pulled7.depend on8.are; referred9.formed 10.have discussedVI. Translation1. Matter can neither be created nor be destroyed/eliminated.2. It is necessary that a scientist must know how to use fingures to get an accutate answer to question.3. Any substance is made of atoms whether it is solid, liquid or gas.4. The experiment was successful. It ’s results was the same as what we had expected.5. It will not be long before we finish the experiment.VII. Write equations for the following acid-base reactions. Use the information in inorganic textbook to predict whether the equilibrium will favor the reactants or the products. (Partially Solved)Solutin to (a): Cyanide is the conjugate base of HCN. It can accept a proton from formic acid:COHHO +CN C OH OC NH +formic acid stronger acid cyanidestronger base formate weaker baseweaker acidReading from inorganic textbook, formic acid (p K a =3.76) is a stronger acid than HCN (p K a =9.22), and cyanide is a stronger base than formate. The products (weaker acid and base) are favored. …………..VIII. Write equations for the net reactions which occur when the following materials are added to a sodium-ammonia solution. Answer: (1) 2CH 3GeH 3 + 2e am - → H 2 + 2CH 3GeH 2-(2) I 2 + 2e am - → 2I -(3) (C 2H 5)2S + 2e am - + NH 3 → C 2H 5S- + C 2H 6 + NH 2-Unit 10 Nomenclature of HydrocarbonsI. Comprehension1.C2.D3.B4.A5.B6.BII. Name the following compounds by the IUPAC systemIII. Draw structures for the following compounds.IV. Decide which item best completes each unfinished sentence.1.A2.A3.B4.CV. Each of the following names is incorrect. Draw the structure represented by the incorrect name (or a consistent structure if the name is ambiguous), and give your drawing the correct name.(…………)Unit 11 Carboxylic Acids and Their DerivativesI. Comprehension1.B2.B3.C4.D5.A6.CII. Fill in the blanks with the phrases given below.1.brought out2.dozen or so; put together3.are made of ;divided by4.are different from5.on the contrary; consist of6.summed up7.stand for8.such as9.are; dependent on 10.break down intoIII. Put in proper prepositions or adverbs into the blanks.1.with; as2.to3.about4.from5.intoIV. Translation1. Similarly, solvent also may not be liquid matter but the others2. A graph plotting solubility against temperature is called a solubility curve. ( The curve plot drawn (made / produced) by solubility as one coordinate and temperature as another coordinate is called solubility curve.)3. Air is mixture of gases , the most abundant of which is nitrogen in the form of N2 (molecules).4. The direction of the reaction and the position of the equilibrium may also be affected by the temperature, pressure, and other conditions.5. Hydrogen has a great affinity for oxygen and easily combines with it to form water.V. Translation玻意尔（Bohr）模型提出不久后，人们就发现原子中的电子比Bohr提出的模型要复杂得多。