2012级化学专业外语作业模版

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化工学科英语作文模板

化工学科英语作文模板英文回答：Chemical Engineering: A Multidisciplinary Field with Wide-Ranging Applications。

Chemical engineering is a branch of engineering that deals with the application of science and mathematics to the design, construction, and operation of chemical plants and processes. The discipline encompasses a wide range of topics, including thermodynamics, fluid mechanics, heat and mass transfer, process control, and chemical reaction engineering.Chemical engineers work in a variety of settings, including chemical plants, pharmaceutical companies, food processing facilities, and environmental protection agencies. They are responsible for designing and operating processes that produce a wide range of products, including chemicals, pharmaceuticals, plastics, and fuels. They alsowork to develop and improve processes that are more efficient, less polluting, and safer.Chemical engineering is a rapidly growing field, as the demand for chemicals and other products continues to increase. In addition, the need for sustainable and environmentally friendly processes is driving the development of new technologies and processes in the field.Key Features of Chemical Engineering。

化学化工专业英语试卷

黄淮学院化学化工系2012-2013学年度第二学期期末考试《专业英语》A 卷1. octane ：2. decyl ：3. butanol ：4. hexene ：5. heptyl aldehyde ：6. oxyacid ：7. aliphatic compound ： 8. oxidation reaction ： 9. organic chemistry ： 10.transition element ： 11. orbital electron： 12.solubilizer ： 13.quantative analysis ： 14.negative charge ： 15.carbonate ： 16.surfactant ： 17.docosane hectane ： 18.alkane ：19.sodium hydroxide ： 20.chloride ： 1. 酮：2.乙氧基化物：3. 键角：4. 热力学函数：5. 同系列：6. 甲苯：7. 构象异构：8. 14烷：9. CH 3CH 2CH 2CH 2CH 2-： 10.电离能： 1．Progress in the so-called “active ingredients ”, which enhance and extent this cosmetic effect measurably, is large enough area to merit another separate aritcle.2．In contrast to inorganic compounds, the molecular attraction of organic compounds is weak, so organic compounds are usually volatile and possess low melting points.3．Benzene can undergo the typical substitution reactions of halogenation,一、 Write the Chinese name for each of the following （每小题1分，共20分）二、 Write the English name for each of the following（每小题1分，共10分）三、 Translate the following sentences into Chinese （每小题3分,共30分）nitration, sulphonation and Friedel-Crafts reaction.4．Evaporation is conducted by vaporizing a portion of the solvent to produce a concentrated solution or thick liquor.5．The presence of a substituent group in benzene exerts a profound control over both orientation and the ease of introduction of the entering substituent.6．The functional group of a ketone consists of a carbon atom connected by a double bond to an oxygen atom.7．At equilibrium, these two rate are equal; cupric ion is still reacting with ammonia molecules to form the complex, and the complex is still decomposing, but just as much cupric ammonia complex is being decomposed in unit time as is being formed.8．The reaction of an acid chloride with an amine is used commercially in the manufacture of the very important range of semi-synthetic penicilings,first produced by the Beechan Group in 1959.9．Thus satisfactory binding propertise are essential for trouble-free compression and the production of good quality cakes over long manufacturing periods.10．The synthesis of organic compounds involves conversion of availablesubstances of known structure, through a sequence of particular, controlled chemical reactions, into other compounds bearing a desired molecular structure.The active ingredients were identified in the unsaponifiable fraction of this vegetable product. After solvent extraction and drying, the pure unsaponifiables are obtained in the form of a waxy solid. This waxy solid is then redissolved in untreated shea butter to increase the unsaponifiable content and thus lead to the unsaponifiable shea butter concentrate. Used in cosmetics at levels of up to 2%,it provides excellent protection against sunlight and skin dryness.Another example is the extract of the kola nut, known for its anti-irritant properties. As available in the market, it has an objectionable color and odor . At Estee Lauder, we analyzed and separated its constituents, identified the individual components with anti-irritant properties, and recombined them in the most effective ratio. In the process , objectionable color and odor were removed and possible allergens（过敏原）eliminated. All this indicates that cosmetics formulated with plant extracts today can be more effective and , at the same time, more elegant than 10 or 20 years ago.四、Translate the following paragraph into Chinese（本大题共1个小题，共25分）采用一种简单、可靠并且有效的气相色谱法，来同时测定草药鱼腥草与鱼腥草注射液中8种活性组分的含量。

化学专业基础英语

distilled water alkali sodium hydroxide potassium hydroxide
pellet 球状 stick棒状 dilute 稀释, 稀释的 standardize 标定 ethyl alcohol 乙醇 ethanol 乙醇, 酒精 neutral 中性的
2、如何制备松香样品？
3、将松香溶解在什么溶剂中？ 4、对试剂和水的纯度有什么要求？
5、为何要配制硼砂缓冲溶液？
6、在电位法测定松香酸度的方法中，
如何更精确地确定等当点？
7、玻璃电极在无水介质中有可能脱水，
在使用玻璃电极时应如何避免这种情
况发生？
1、松香酸度的测定包含哪些方法？这些方法适用于测定什么类型的松香？ Internal indicator method, and Potentiometric method.
purchaser seller phenolphthalein thymol thymol blue procedure
weigh 称量 Erlenmeyer flask 锥形瓶, 厄伦美氏(烧)瓶 dissolve 溶解 room temperature 室温 titrate，titration 滴定 persistent 稳定的 faint pink color 浅红色
The specimen shall be so prepared the same day on which the test is begun, in order to avoid changes in properties due to surface oxidation, which is very pronounced（显著的） on ground （ grind ，磨 ( 碎 ) ） rosin having a large surface area exposed to the air.

化学学院2005-2006专业英语试题

化学学院2005－2006学年化学专业英语期末考试试题姓名系别班级学号1、银8、氯15、钾2、硅9、钛16、铂3、硫10、砷17、氖4、铁11、镁18、氢5、钙12、氩19、硼6、铜13、镍20、锂7、铅14、氮21、氢氰酸22、氢氧化锡23、配位共价键24、二氧化碳25、碱金属26、次氯酸盐27、滴定28、磷酸29、树脂30、硫酸氢钠31、分子式32、三氧化二铁33、电解质34、阴离子35、给予体36、键能37、中子38、催化剂39、电离（名词）40、水溶液41、螯合物42、稀土元素43、无机化合物44、共轭酸45、正离子46、质子47、中和（名词）48、惰性气体49、离解（名词）50、还原（动词）51、置换（名词）52、亲电试剂53、氧化（名词）54、水合氢离子55、腐蚀（名词）56、共用电子对57、逆反应58、溶解度59、同位素60、晶体二、把下列句子译成英文（20分）1、硫酸中的两个氢原子可以被钠和钾分别取代得到混盐NaKSO4。

2、在通常条件下，V A和VIA族较重的元素不生成简单的双原子分子。

3、酸中的氢和碱中的氢氧根结合形成了水分子。

4、碱金属是非常活泼的金属，在自然界它们从未以元素状态被发现过。

5、氮和氢的混合物在反应中形成了氨。

三、把下列短文译成汉语（50分）The conjugate base of a strong acid will be a weak base, and the conjugate base of a weak acid will be a strong base. Moreover, the stronger the acid, the weaker will be its conjugate base and vice versa.As examples of this principle consider the following:1.The chloride ion, bromide ion, iodide ion, nitrate ion, and perchlorate ionare all conjugated bases of very strong acid and, thus, all are very weakbases. In aqueous solution these anions have virtually no affinity for protonsand exist as simple solvated ion.2.The hydroxide ion is the conjugate base of water; water is a very weak acid.The hydroxide ion is therefore a strong base. It is, as we have said, thestrongest base that can exist in aqueous solutions.3.The acetate ion is the conjugate base of the weak acid, acetic acid. As aresult, the acetate ion is a moderately strong base.Central to the ideas of the structure of coordination compounds is that transfer of electrons takes place between the ligands and a molecule or metal ion. In its simplest form a coordinate bond is formed by transfer of a pair of electrons from the ligand to the molecule or metal ion. Molecules or ions which act as ligands should thereforehave lone pairs of electrons for donation, e.g. NH3, Cl- , C2O42- . The simplest type of coordination compound will thus be formed by a σ-bond between a ligand and a molecule or metal ion.Zinc is fairly high in the activity series. It reacts readily with acids to produce hydrogen and displaces less active metals from their salts. The action of acids on impure zinc is much more rapid than on pure zinc, since bubbles of hydrogen gas collect on the surface of pure zinc and slow down the action. If another metal is present as an impurity, the hydrogen is liberated from the surface of the contaminating metal rather than from the zinc.Let us begin by examining what happens to the total energy of two hydrogen atoms with electrons of opposite spins (自旋) when they are brought closer and closer together.When the atoms of hydrogen are relatively far apart their total energy is simply that of two isolated hydrogen atoms. As the hydrogen atoms move closer together, each nucleus increasingly attracts the other’s electron. This attraction more than compensates for the repulsive force between the two nuclei ( or the two electrons), and the result of this attraction is to lower the energy of the total system. When the two nuclei are 0.74Åapart, the most stable (lowest energy) state is obtained. This distance corresponds to the bond length for the hydrogen molecule. If the nuclei are moved closer together the repulsion of the two positive charged nuclei predominates, and the energy of the system rises.。

化学专业外语练习题

化学专业外语练习题1、c Which of the following belongs to phosphate?( sodium phosphite)(a) PH3 (b) Na3PO3(c) Na3PO4 (d) P2、b 1H and 2H are ____ and occupy the same position in periodic Table.(a) isomers (b) isotopes (c) redox bodies (d) amphoteric compounds3、d The ____ of a carbon is 12(a) the weight of molecule (b) molecular number(c) the weight of atom (d) atomic weight4、Which of the following belong to nitrate? C(a) NH3 (b) KNO3 (c) KNO2 (d) NO5、Which of the following belongs to secondary amine? B4、The number of outmost electron in carbon atom is _C_.(a) 1 (b) 2 (c) 4 (d) 65、In reaction H2 + CuO — H2O + Cu, __B__ is reduced.(a) H2 (b) CuO (c) Cu (d) H2O6、Which of the following is charged? _C_(a) atom (b) molecule (c) proton (d) neutron7、Who first presented Periodic Table of elements? C(a) Democritus (b) Boyle (c) Mendeleev (d) Dalton8、Which of the following is classified into amine? B(a) NH3 (b) CH3NH2 (c) NaNH2 (d) N29、The substances on the left side of the chemical equation are known as __d_ .(a) reactant (b) reactor (c) reductant (d) reaction10、Who first present the model of an atom in 1900s? b(a) Plato (b) Dalton (c) Mendeleev (d) Boyle11、Which of the following belongs to nitrite? b(a) HNO2 (b) KNO2 (c) Mg3N2 (d) NH312、Which of the following belongs to metal? b(a) selenium (b) sodium (c) Tellurium (d) Helium13、d The elementary particle of ____ is uncharged. d(a) proton (b) electron (c) ion (d) neutron14、d Bromine has ____ electrons in its outermost energy level. d(a) 2 (b) 3 (c) 8 (d) 715、a Which of the following is non-metal?(a) chlorine (b) lead (c) copper (d) mercury16、a The atomic number of helium is ____.(a) 2 (b) 4 (c) 3 (d) 017、d The horizontal rows of the periodic table are called ____.(a) energy level (b) groups (c) electron configuration (d) periods18、a The symbol for element silver is ____.(a) Ag (b) Sn (c) Hg (d) Au19、c The atomic number of carbon is ____.(a) 13 (b) 6 (c) 12 (d) 120、b Which of the following is inert element?(a) hydrogen (b) helium (c) tellurium (d) potassium21、c Which of the following belongs to halogen?(a) carbon (b) lithium (c) fluorine (d) neon22、a Which of the following belongs to noble gas?(a) neon (b) potassium (c) iodine (d) lead23、a Which of the following belongs to alkali metal?(a) silver (b) sodium (c) tellurium (d) bromine24、b Which of the following belongs to metal halide?(a) KClO3 (b) KCl (c) HCl (d) Cl225、a The ____ of carbon is is 1s22s22p2(a) electron configuration (b) periodicity (c) general property (d) inertness26、b The general property of metal is ____.(a) soft (b) lustrous (c) flammable (d) toxic27、c Fluorine, chlorine, bromine and iodine belong to ____ group.(a) alkaline metal (b) transition metal (c) halogen (d) alkaline earth metal28、b Few reactions occur on helium and argon, so the two elements are chemically ____.(a) reactive (b) inert (c) mild (d) strong29、a The standard enthalpy for normal oxygen is ____.(a) 0 (b) >0 (c) <0 (d) ≠030、c The maximum electronegative element in Periodic Table is ____.(a) H (b) Na (c) F (d) He31、b Which of the following belongs to the complex?(a) FeF3 (b) Na3[FeF6] (c) Fe3O4 (d) Fe32、d When solid NaCl is put into water, the solid ―disappears‖. The whole system is called ____.(a) soluble (b) solvent (c) solubility (d) solution33、d Mn2+ can be ____ to MNO4- by (NH4)2S2O8 in acidic solution.(a) reduced (b) exchanged (c) substituted (d) oxidized34、a Charged atoms are called ____.(a) ions (b) protons (c) electrons (d) molecules35、b Which of the following is classified into oxo-anion ?(a) O2- (b) SO42- (c) S2- (d) S2-36、a Reaction CH4 +Cl2→ CH3Cl + HCl is called ____ reaction.(a) substitution (b) oxidation (c) reduction (d) exchange37、c Benzene is often used as ____ both in laboratory and in chemical industry.(a) solution (b) solvation (c) solvent (d) solute38、c Standard entropy of any species is ____.(a) 0 (b) ≤ 0 (c) ＞ 0 (d) both (b) and (c)39、b If aqueous NaCl is wanted to separate, ____ is good choice.(a) substitution (b) distillation (c) coordination (d) bond40、b Alcohol is readily ____ and we smell it everywhere in air.(a) soluble (b) volatile (c) reactive (d) precipitated41、b As a general rule, the coordination compounds(the complex) with coordination number of six are observed _____ structure(a) tetrahedral (b) octahedral (c) octagonal (d) bipyridyl42、d The demanded energy that a gaseous neutral atom loses one electron at thermodynamic standard condition is called the first ____.(a) energy level (b) electron configuration (c) activation energy (d) ionization energy43、c NaCl is ____ in water.(a) solution (b) solvent (c) soluble (d) precipitated44、d When AgNO3 is mixed with NaCl, AgCl ____ is developed.(a) solution (b) solvent (c) soluble (d) precipitated45、b Which of the following belongs to hydrocarbon?(a) C11H22O11 (b) C8H18 (c) CH3COOH (d) H2SO446、a In K4[FeF6], the charge of the complex part is ____.(a) -4 (b) +2 (c) +1 (d) –147、b Which of the following belongs to substitution reaction?(a) H2 + Cl2— HCl (b) C6H6 + Cl2— C6H5Cl + HCl (c) H2O — H2 + O2 (d) S+ O2— SO248、a In K4[FeF6], the oxidation number(or state) of Fe is ____.(a) 2 (b) 0 (c) 6 (d) 449、__c__ is defined as required energy to break chemical bond into neutral species at thermodynamic standard condition. For example breaking H－H bond into two H· atom requires 104kJ/mol.(a) Lattice energy (b) Hydration energy (c) Bond energy (d) Activation energy50、a When gaseous HCl dissolves into water, ____ solution forms.(a) acidic (b) basic (c) salty (d) no51、b When ionic compounds dissolve in water, the ions interact with water molecules. Such process is called ____.(a) coprecipitation (b) ionization (c) hydration (d) coordination52、d When ions dissolve in water, they are surrounded by water molecules. Such process is called ____.(a) sublimation (b) substitution (c) ionization (d) solvation53、c When benzene is added in aqueous solution containing iodine, most of iodine then transfers into benzene because of the more solubility of iodine in benzene. Such process is called ___.(a) refinement (b) titration (c) extraction (d) diffraction54、d Which of the following is classified into transition element?(a) silicon (b) tin (c) helium (d) copper55、__b__ H2SO4 is often used in chemical experiment.(a) Volatile (b) Concentrated (c) Flammable (d) Inert56、a Electrolysis of aqueous solution will produce____.(a) H2 (b) H (c) water (d) OH-57、d Zinc reacts with ____ H2SO4 to generate hydrogen gas at room temperature.(a) concentrated (b) cold (c) hot (d) dilute58、a Which of the following belongs to oxoacid?(a) H2SO4 (b) H2S (c) H2O (d) HS-59、c Which of the following belongs to diatomic molecule?(a) HCN (b) KClO3 (c) HCl (d) C8H1060、c If solid NaCl is added into its saturation solution , ____ is developed.(a) transparent solution (b) colloidal (c) precipitate (d) dissolution61、c Which of the following belongs to alkali earth metal?(a) potassium (b) lead (c) calcium (d) boron62、b Which of the following belongs to hydride?(a) CuSO4·5H2O (b) H2S (c) C6H6 (d) H2SO463、a Which of the following belongs to carbohydrate?(a) C11H22O11 (b) C10H8 (c) HCHO (d) CO264、a Which of the following belongs to representative element?(a) carbon (b) iron (c) copper (d) zinc65、d Which of the following belongs to alkaline earth element?(a) potassium (b) mercury (c) boron (d) magnesium66、a Benzene usually carries out ____ reaction, as described belowC6H6 +Cl2---------C6H5Cl + HCl(a) substituent (b) substitution (c) displacement (d) alternative67、a The general formula of saturation alkane is ____(a) C n H2n+2 (b) C n H2n (c) C n H2n-2 (d) C n H2n-668、c There are ____ carbon atoms in parent chain of 2,3-dimethylbutane.(a) 2 (b) 5 (c) 4 (d) 669、c Which of the following is trans-2-butene?70、d The vinyl group has the structure of ____.(a) CH3CH2— (b) C6H5— (c) CH≡C— (d) CH2=CH—71、b Compounds that containing both hydroxyls and carbon-carbon double bonds are called ____(a) polyols (b) unsaturated alcohols (c) cyclols (d) thiol72、c Dienes contain ____ carbon-carbon double bonds.(a) di- (b) eth- (c) two (d) secondary73、a Which of the following is classified into alkenol?(a) CH2=CHCH2OH (b) CH3CH2CH2OH (c) CH≡CCH2OH (d) HOCH2CH2CH2OH74、b Vinylcyclopropane is classified into ____(a) alkane (b) alkene (c) alkyne (d) alkenyne75、c The functional group of alcohol is ____.(a) hydrate (b) hydroxide (c) hydroxyl (d) hydride76、a Alkynes contain carbon-carbon ____ bond(a) triple (b) three (c) tertiary (d) prop77、b Methylenecyclopentane is classified into ____(a) alkane (b) alkene (c) alkyne (d) alkenyne78、c Which of the following is the formula or general formula of ammonia?(a) C6H5OH (b) C6H5NH2 (c) NH3 (d) RNH279、a A primary amine contains ____ hydrogens attached to its nitrogen atom.(a) 2 (b) 3 (c) 4 (d) no80、d Reaction between methanamine and hydrochloric acid produces ___ salt.(a) imide (b) imine (c) amide (d) ammonium81、b The functional group of amine is ____.(a) ammonia (b) amino (c) ammonium (d) ammine82、a Alkanes contain carbon-carbon ____ bonds.(a) single (b) double (c) triple (d) both (b) and (c)83、d (+)-Glucose (C6H12O6) is ___ aldehyde, which contains hydroxyls and distinguishesfrom common aldehydes or alcohols in properties.(a) polyhydrate (b) many-hydrooxy (c) multihydroxyl (d) polyhydroxy84、b Compounds containing —OH and C=C groups are called ____ alcohols, because of the presence of carbon-carbon double bonds.(a) primary (b) unsaturated (c) monohydroxyl (d) polyolic85、b Oxacyclopropane contains ____ atom(a) nitrogen (b) oxygen (c) sulfur (d) phosphorus86、a azacyclopropane contains ____ atom(a) nitrogen (b) oxygen (c) sulfur (d) phosphorus87、 azacyclopropane is classified into ___?_(a) amine (b) ether (c) alkane (d) alkene88、a Oxacyclopropane contains ____ carbons(a) 2 (b) 3 (c) 4 (d) 589、d Which of the following belongs to tertiary amine?(a) CH3NH2 (b) (CH3)2NH (c) (NH3)3N (d) N(CH3)4+90、a Which of the following contains carbonyl group?(a) CH3COOH (b) CH3OCH3 (c) CH3CH2OH (d) CH3CH2Cl91/c Which of the following contains hydroxyl group?(a) CH3CHO (b) CH3OCH3 (c) CH3CH2OH (d) CH3CH2Cl92、c Which of the following belongs to saturated ketone?(a) CH3CHO (b) CH2=CHCOCH3 (c) CH3CH2COCH3 (d) CH3COOH93、c Carboxylic acids react with alcohols to form ____.(a) acid halides (b) acid anhydrides (c) esters (d) amides94、c The general formula of organic amides is ____.(a) RNH2 (b) RNH3+X- (c) RCONH2 (d) NaNH295、b Decarboxylation, elimination of the ___ as CO2is of importance for β-keto acid.(a) —OR (b) —COOH (c) —CHO (d) —CONH296、a Reaction of acid chloride with water forms ____.(a) carboxylic acid (b) chlorocarboxylic acid (c) ester (d) phenol97、b We can deduce that thiophene contains ___ element though its detailed structure is unknown.(a) O (b) S (c) N (d) C98、a Which of the following is neutralization reaction?(a) acid and base (b) salt and salt (c) salt and base (d) acid salt99、b Reaction of carboxylic acid with alcohol is defined as ____.(a) etherification (b) esterification (c) epoxide (d) elimination100、b Reaction of acid anhydrides with ammonia produce____(a) ammonium (b) amide (c) amine (d) amino101、d In K4[FeF6], the Fe is called ____.(a) dipole moment (b) coordination number (c) ligand (d) centre ion or atom102、a Concentration of concentrated sulfuric acid is ______(a) 18M (b) 12M (c) 6M (d) 2M103、a The detailed, step-by-step description of a chemical reaction is called ____, e.g., hydrogen reacts with oxygen to generate water. Such reaction involves the following step:H2→ H·H· +O2→ HO· + O·H· + HO·→ H2O(a) mechanism (b) dynamic equation (c) activation energy (d) process104、a Hydrolysis of FeCl3 shows ____(a) acidic (b) neutral (c) alkaline (d) amphoteric105、c Carbocation carries ____ charge.(a) no (b) neutral (c) positive (d) varying106、a A large excess of alcohol is added in the following reaction, CH3COOH +CH3CH2CH2OH------CH3COOC3H7 + H2O, the equilibrium shifts ____.(a) forwards (b) backwards (c) nothing (d) uncertainy107、c The reaction CH3COOH+ C2H5OH ----- CH3COOC2H5 is a ____ reaction because it proceeds in both direction.(a) forwards (b) backwards c) reversible d) reverse108、a If an entity combines with a proton, it is called ____.(a) protonation (b) protolysis (c) protophile (d) non-protic109、c The key raw material for chlor-alkali is ____.(a) lime (b) brine (c) soda ash (d) wood pulp110、a Soda ash is composed of ____.(a) sodium carbonate (b) sodium bicarbonate (c) ammonium bicarbonate (d) mixture between and sodium carbonate and sodium bicarbonate111、c According to the reaction 2NaCl +2 H2O ---------2NaOH + H2 +Cl2, the ration of caustic soda to chlorine is ____ (a) 1:2 (b )1:1 (c)2:1 (d)1：0112、c Sodium hydroxide, called ____ because of its corrosion, will burn or, even corrode our tissue and skin if it spots on them.(a) soda ash (b) caustic sodium (c) caustic soda (d) lime113、d Quicklime is manufactured by the thermal _______ (1200℃~1500℃) of limestone according to the equation: CaCO3 ------- CaO + CO2(a) combination (b) transfer (c) hydrolysis (d) decomposition114、b Which of the product derived from chlor-alkali industry?(a) electricity (b) chlorine (c) limestone (d) refractory115、c When an ammoniated solution of salt is bubbled by carbon dioxide, the process is called ____.(a) decomposition (b) calcine (c) carbonation (d) oxidation116、c In Solvay Process, separation between NaHCO3 precipitates and liquor should be carried out through ____. (a) drying (b) distillation (c) filtering (d) concentration117、c To remove some water from wet CaCO3, ____ is available.(a) electrolysis (b) metathesis (c) drying (d) solubility product118、c If you want to clear water from aqueous NaCl, the reasonable approach is ____.(a) cracking (b) humidification (c) distillation (d) agitation119、c If a solid NaCl is available from its aqueous solution, the reasonable method is ____ (a) lixiviation (b) sedimentation (c) crystallization (d)centrifugation120、d Which of the following is classified into metathesis?(a) H2 + O2— H2O (b) HCl + NaCl — NaCl + H2O(c) Zn + HCl — ZnCl2 + H2 (d) Na2SO4 + BaCl2— BaSO4 + NaCl121、d Silicate-gel is often used as ____ in chemical laboratory.(a) oxidant (b) packing material (c) initiator (d) drying agent122、b If we want to obtain solid NaCl from its aqueous solution, the reasonable operation is ____.(a) pyrolysis (b) crystallization (c) adsorption (d) adsorption123、d Which one of the following belongs to chloride?(a) Cl2 (b) NaClO3 (c) HClO3 (d) NaCl124、b All detergents, such as soap, contain ____.(a) chromatograph (b) surfactants (c) bleaching powder (d) catalysts125、Look at the following two electrode reaction(1) or (2):(1) Cl- -2e → Cl2(2) 2H2O +2 e → H2 +2OH-a Electrode (1) is ____(a) cathode (b) anode (c) negative electrode (d) electron127、c Bleaching powder is often used as ____ in public water supplies.(a) infection (b) alkalisource (c) disinfectant (d) raw material128、a The raw material to produce sulfuric acid is____.(a) sulfide (b) sulfur (c) sulfate (d) sulfonate129、c Electrolysis of aqueous HCl will generate __？__.(a) hydride (b) hydrogen ion (c) hydrogen (d) hydrate130、b Which of the following shows alkaline?(a) chlorine (b) caustic soda (c) sulfuric acid (d) hydrogen131、a The method to produce industrially sulfuric acid is ____.(a) contact process (b) Solovy Process (c) electrolysis (d) lead chamber132、c Which of the following belongs to sulfide?(a) Na2S2O3 (b) Na2SO3 (c) Na2S (d) Na2SO4133、c If excess sulfur trioxide is dissolved into pure sulfuric acid, ____ forms.(a) concentrated sulfuric acid (b) dilute sulfuric acid(c) oleum (d) divanadium pentoxide134、b The method to synthesize ammonia is ____ .(a) Solvay Process (b) Habor Process(c) Catalytic Reforming (d) methanation135、d Prior to reforming reaction, the syngas requires _______ process, in which sulfur-containing compounds must be removed as they poison both the reforming catalysts and Harber catalysts.(a) sulfonation (b) sulfurization (c) sulfates (d) desulfurization136、d If a steam is required to be converted into liquid, _____ is available.(a) absorption tower (b) reformer (c) membrane cell (d) condenser137、c Benzene is ____ with concentrated nitric acid to form nitrobenzene, as described below: C6H6 + HNO3— C6H5NO2 + H2O(a) nitrogenated (b) nitrized (c) nitrated (d) nitricated138、b The following reaction is exothermic:4NH3 + 5O2— 4NO + 6H2O, therefore, low temperature favors the reaction ____.(a) backwards (b) forwards (c) no shift (d) uncertain139、a In the following reaction, Cu + 2H2SO4— CuSO4 + SO2 + 2H2O____ is oxidized.(a) Cu (b) H2SO4 (c) SO2 (d) H2O140、b The raw material to produce industrially nitric acid is ____.(a) nitrogen (b) ammonia (c) amine (d) ammine141、a Dehydration of pure nitric acid will give ____.(a) H2O (b) N2O5 (c) NO2 (d) NO142、c About 65% nitric acid reacts with ammonia to give ____.(a) nitrogen (b) ammonium nitrate (c) nitrogen dioxide (d) dinitrogen pentoxide.143、b Which of the following is an important precursor for petrochemicals?(a) ethane (b) ethylene (c) ethanol (d) ethanoic anhydride144、a Demethylation of methylcyclohexane gives ____.(a) cyclohexane (b) cyclohexyl (c) cyclohexene (d) benzene145、Dehydrogenation of cyclohexane gives __？__.(a) cyclohexene (b) cyclohexanone (c) cyclohexyl (d) cyclohexanecarboxylic acid146、a Precisely, the molecular weight of polymer, often greater than 107, equals to that of____ multiplied by degree of polymerization.(a) monomer (b) mole (c) covalent bond (d) radical147、b Vulcanization of rubber refers to addition of some ____ in the framework of rubber body.(a) vanadium (b) sulfur (c) chlorine (d) nitrogen148、c When the degree of polymerization reaches less than 20, we say the polymer is ____.(a) the intermediate (d) the distillate (c) oligomer (d) monomer149、c At the top of the distillation tower, there is a ____ to cool the vapor into reflux liquid and to recycle into the tower.(a) heat exchanger (b) furnace (c) working tank (c) condenser150、bIn sulfuric acid industry, elemental sulfur is combusted in ____ to general sulfur dioxide.(a) fractionating tower (b) furnace (c) steam stripper (d) working tank151、c At the bottom of the distillation tower, there is a(an) ____ to boil the liquid into vapor and to recycle into the tower.(a) still (b) auxiliary (c) tank (c) boiler152、d If a new bond between polymeric chains is developed, the process is called ____.(a) covalence (b) side-chain (c) fabrication (d) cross-linking153、a Which of following belongs to synthetic polymer?(a) plastic film (b) silk (c) cellulose (d) starch154、a Copolymers are derived from polymerization of ____ monomers, such as C6H5OH and HCHO.(a) different (b) usual (c) the same (d) conventional155、d Any commodity should have a technical ____ if they go into public commerce.(a) specific (b) specify (c) specialty (d) specification156、c The ____ of Zn-Cu alloy(solid solution) is as follow: 30%Zn and 70%Cu.(a) composite (b) component (c) composition (d) complex157、d As a convention, [Cu(NH3)4]SO4 is never considered a salt, but a ____.(a) composite (b) component (c) composition (d) complex158、b After synthesis of a product, the product must be ___ because the mixture contains the desirable products as well as the remaining reactants, catalysts, by-products.(a) pre-treated (b) post-treated (c) blended (d) eliminated159、a When ethanol is dissolved into water, a ____ solution is developed.(a) homogeneous (b) heterogeneous (c) viscose (d) latent160、a The reaction H2 + O2 -----H2O is ____.(a) exothermic (b) endothermic (c) isothermal (d) thermodynamic161、c Which of the follow is used as the semi-conductor material?(a) Fe (b) N2 (c) Si (d) He162、c Homopolymers are derived from polymerization of ____ monomers, such as polyethylene.(a) different (b) usual （c) the same (d) conventional163、a Activate carbon is often used as adsorbent in laboratory due to its large ____ surface.(a) specific (b) specify (c) specialty (d) specification164、b To obtain pure substance from the mixture, ____ is a good choice.(a) catalysis (b) purification (c) reactor design (d) solubility165、d If a reaction is carried out at a very high pressure, _____ is a good choice.(a) furnace (b) fractionating tower (c) heat exchanger (d) autoclave166、d Which of the following is classified into polymer?(a) formaldehyde (b) silica (c) sulfur trioxide (d) epoxy resin 167、a Which of the following is classified into synthetic polymer?(a) resin (b) vinyl chloride (c) epoxide (d) silica。

化学专业英语试卷A答案

2012—2013学年度第一学期应用化学专业《专业英语》课程试卷（A ）注意事项：1. 考生务必将自己姓名、学号、专业名称写在指定位置；2. 密封线和装订线内不准答题。

一、词汇填空（写出下列每个词汇对应的英汉单词）（共20小题，每空1分，共20分）1、化学性质（chemical property ）2、物理性质（physical property ）3、溶解度（solubility ）4、密度（density ）5、沸点（boiling point ）6、熔点（melting point ）7、反应（reaction ）8、无机的（inorganic ）9、有机的（organic ）10、化合物（c ompound ）11、烷烃（alkane ）12、乙醇（ethanol ）13、烯烃（alkene ）14、炔烃（alkyne ）15、ester （酯）16、ether （醚）17、acetone（丙酮）18、formaldehyde （甲醛）19、ammonia （氨）20、benzene （苯）二、给下列无机化合物的英语名称（共10小题, 每小题2分，共20分）1、CaO calcium oxide2、HClO 4 perchloric acid3、CuSO 4 copper sulfate4、NaBrsodium bromide 5、NaCl sodium chloride6、HNO 3 nitric acid7、HNO 2 nitrous acid8、Al 2O 3 aluminum oxide9、KNO 3 potassium nitrate10、FeBr 3 ferric bromide三、给下列有机化合物的英语名称（共5小题, 每小题4分，共20分）1.辛烷octane2.CH 2=CHCH 2CH 31-butene3.CH 3CH 2CH 2CH 2OHbutanol4.CH 3CH 2OCH 3ethyl methyl ether5.CH3(CH2)4CO2Hhexanoic acid四、英译汉（共10小题, 每小题4分，共40分）Array1、The properties of substances are their characteristic qualities. Thephysical properties are those properties of a substance that can be observed without changing the substance into other substances.物质的性质是它们的特别品质。

上海市杨浦区2012届高三第二学期模拟测试(一)(化学)(2012杨浦二模).pdf

Module 9 English for you and me Unit 3 Language in use It’s the subject that I’m best at, although my handwriting could be better. It’s the most important foreign language that children will learn at school, because it’s essential for tourism…. Until English became important in the 20th century, people who had any education spoke French. Lead in The UK was a country whose industrial products were sold all over the world. But it’s also important to remember that English has borrowed many words. Even though there are differences, we all belong to the international English speaking world. 1. Join the sentences with the words in the box. when 2. although 3. because 4. who 5. that Activity 1 The development of English… Activity 6 Reading Read the passage and choose the correct answer. English is a world language because _____. there are 5. 8 billion people who don’t speak it 180 million people in China are learning it nobody speaks Latin any more speakers of all languages, from all over the world, use it 2. In the future, people won’t need to learn English, because___. most people will have learnt it more and more Chinese people are learning it it will no longer be as widely spoken as it is today educated people will prefer Latin 3. If most children learn English at school, ____. the number of English beginners in the world will increase the level of English will be higher around the world they will want to learn other languages as well languages like Arabic and Chinese will be less popular 4. English may not always be the world language, because____. many people speak other languages Latin is going to be the common language again people want to learn other languages it is too difficult to learn Around the world Zamenhof Choose the best answer according to the short passage. 1. Since _____, people have been inventing languages. A. the 15th centuryB. the 17th centuryC. the 16th centuryD. the 18th century 2. Esperanto was invented by _____ man. A. a Polish B. a Chinese C. an English D. a French 3. Each letter of Esperanto always makes _____sound, and the grammar rules are _____. A. the same; difficultB. the same; simpleC. different; difficultD. different; simple Work in groups and talk about what problems you have in learning English. Reading Writing Listening Speaking Vocabulary Grammar Cultural knowledge 合作探究 Phrases in this unit. 1. one of the most interesting events 最有趣的事件之一 2. communicate with sb. 与某人进行交流 3. there are … being done 有……正在被做 4. look into the future 展望未来 5. not …at all 一点也不 6. express an interest in 表示出对……的兴趣从句 Grammar 一个主句和一个或一个以上的从句构成复合句。

化工专业英语试卷答案

2012-2013学年化工专业英语试题答案一、Write the corresponding formula or molecular formula .( 15′)1、H—Cl2、Cl-O-Ca-O-Cl3、C6H64、C6H125、CH3CH2CH2CH＝CH2二、Put the following into English or Chinese.（ 30′）1.石油化学制品2. butane3. sodium carbonate4. 聚合作用5.ammonia6. 药物7. antioxidant 8. 聚四氟乙烯9.环己烷10.heavy distillate11.乙醇胺12. thermodynamics13.光谱学14. refinery15.多相的16. isothermal17.聚氧化亚甲基18. chloride19. ethanol 20. 聚氯乙烯三、complete the note below with words taken from the text above.(unit 3) Use NO MORE THAN THREE WORDS for each answer.（ 30′）1.Mechanical2.electrical3.civil4.scale-upmercial-size6.reactors7.distillation columns8.pumps9.control and instrumentation10.mathematics11.industry12.academia13.steam14.cooling water15.nitrogen四、Put the following sentences underlined into Chinese.(10′)㈠单一的化工厂产量有从精细化工领域的每年几吨到肥料、石油领域的化工巨头的每年500，000吨。

南开大学2012-2013第一学期化学学院课表(含新专业-化学生物学)

化学院本科生2012 —2013学年第一学期课程表
2012级化学专业
2012-5-4
化学院本科生2012—2013学年第一学期课程表
2012材料专业
化学院教学办
2012-5-4
化学院本科生2012—2013学年第一学期课程表
2012分子专业
化学院教学办
2012-5-4
化学院本科生2012—2013学年第一学期课程表
2012化学生物学专业
化学院教学办
2012-5-4
化学院本科生2012 —2013 学年第一学期课程表
2011化学专业
化学院教学办
2012-5-4
化学院本科生2012 —2013学年第一学期课程表
2011材料专业
化学院教学办
2012-5-4《外语听说》、《体育》是校级必修课，必须选。

但相同类型课程只许选一个选课序号，不得重复选相同课程
化学院本科生2012 —2013学年第一学期课程表
2011级分子专业
2012-5-4《外语听说》、《体育》是校级必修课，必须选。

但相同类型课程只许选一个选
课序号，不得重复选相同课程
化学院本科生2012 —2013学年第一学期课程表
2010级化学专业
化学院教学办
2012-5-4
化学院本科生2012 —2013学年第一学期课程表
2010级材料专业
化学院教学办
2012-5-4
化学院本科生2012—2013 学年第一学期课程表
2010级分子专业
化学院教学办
2012-5-4
2009化学专业
2009材料专业
化学院本科生2012—2013学年第一学期课程表
2009分子专业
2012-5-4。

化学化工英语文本unit4-2

(3) The variety of processes and industries that call for the services of chemical engineers is enormous.
(4) the individual operations have common techniques and are based on the same scientific principles.
4.2.Heat transfer processes, including evaporation, condensation
4.3.Mass transfer processes, including gas absorption, distillation, extraction, adsorption, drying
(8) A number of scientific principles and techniques are basic to the treatment of the unit operations.
讲授法
翻译法
示例法
归纳法
5)Chemical engineering unit operations also fall in the following categories:
Combination (mixing)
Separation (distillation)
Reaction (chemical reaction)
(5) No chemical reaction appears in these steps.
(6) the cracking reaction could not be utilized without them.

每日化学英语作文模板

每日化学英语作文模板英文回答：Daily Chemical Writing Template。

1. Introduction。

Begin with a brief introduction to daily chemicals.Define daily chemicals as household products used for cleaning, personal care, and pest control.Examples of daily chemicals include detergents, soaps, shampoos, disinfectants, and insecticides.2. Types of Daily Chemicals。

Classify daily chemicals into different types based on their functions:Cleaning agents。

Personal care products。

Air fresheners。

Insecticides。

Disinfectants。

Provide specific examples of each type.3. Ingredients and Safety。

Discuss the ingredients commonly found in daily chemicals, including surfactants, detergents, solvents, and active ingredients.Explain the importance of reading product labels and understanding the potential health and environmental hazards associated with daily chemicals.Emphasize the need for safe handling and storage of daily chemicals.4. Environmental Considerations。

2012年高考英语模拟试卷1(含答案).pdf

4.4 化学式和化合价学习目标： 1、了解化学式的含义，初步掌握并运用化学语言——化学式的书写及其意义。

2、知道并熟练记忆一些常见元素和根的化合价，常见元素的化合价及化合价的特点 3、会读简单的化合物的名称。

【课前预习】 1.写出下列元素的名称或元素符号 Fe＿＿Mg＿＿H＿＿C＿＿Cu＿＿O＿＿氮＿＿硫＿＿氦＿＿锌＿＿铝＿＿钠＿＿ 2.在H2O、H2、O2、H、O、H+ 中属于分子的是＿＿＿＿＿＿属于原子的是＿＿＿＿＿属于离子的是＿＿＿＿＿＿ 3.在H2O、CO2、CaCO3、Fe3O4 空气、Al、O2中属于单质的是＿＿＿＿＿属于化合物的是＿＿＿＿＿属于氧化物的是＿＿＿＿＿＿【课堂探究】一、化学式 1、化学式是用＿＿＿＿＿＿和＿＿＿＿＿＿的组合表示物质组成的式子 2、每种纯净物的组成是＿＿＿＿＿＿，所以表示每种物质组成的化学式只有＿＿个。

3、化学式表示的意义：＿＿＿＿＿＿A ＿＿＿＿＿＿＿＿＿＿＿＿B ＿＿＿＿＿＿＿＿＿＿＿＿C ＿＿＿＿＿＿＿＿＿＿＿＿D ＿＿＿＿＿＿＿＿＿＿＿＿写出下列化学式表示的意义： CO2＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿ P2O5 ＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿ 4、说出符号H、2H、H2、2H2、H2O、3H2O各表示的意义？ 5.化学式的书写应注意哪几点？ 6.怎样书写单质的化学式？ 7.怎样读化合物的名称？例如：KCl、NaCl 二、化合价学生自读课本P82--83化合价，完成下列问题： 1、形成化合物的元素有固定的＿＿＿＿＿，化学上用＿＿＿＿来表示原子之间相互化合的数目。

2、化合价有＿价和＿价，在化合物中氧元素通常显＿＿价，氢元素通常显＿＿价，金属元素跟非金属元素化合时，金属元素显＿＿价，非金属元素显＿＿价。

3、在化合物中正、负化合价的代数和为＿＿＿，在单质里，元素的化合价为＿＿＿＿＿＿。

4、什么是原子团？写出常见五种原子团并标明名称和化合价。

化学专业基础英语作业二

化学专业基础英语作业二翻译：2.2 物理量中的数字1. 测量和有效数字（significant figures）（1）一个物理性质测量的结果用数值（numerical value）和测量单位一起来表示，例如，180 磅，91千克（2）精确数字没有不确定性；通过直接计算所有项或者定义来表示。

来自于测量的数字永远是不精确的。

由于测量的误差总是存在某种程度的不确定性：测量仪器的局限性，每个人进行测量时的可变性，或者其它实验条件。

（3）有效数字包括所有的具有确定性的已知数字，加上第一个数字得到右边的数字，这个数字（右边的数字）就是一个不确定值。

例如，一个粉末样品质量的不确定性，如从“分析天平”读得，即3.1267 g，是±0.001 g。

（4）在测定中误差包括两个方面：（i）偶然误差（Random errors）来自于实验中的一些不可控可变因素（variables）并且影响精确度/精密度（precision）——测量结果的重复性/再现性（reproducibility）。

（ii）能被指定而确定的系统误差（systematic errors）引起并影响准确度（accuracy）——与实验或测量真实结果的接近度。

2. 找出有效数字的位数我们能找到从左到右计算得到的有效数字的位数，开始于第一个非零数字而结束于最后一个不确定数值。

例如：（略）（digit表示单个的数字，而number表示一个具有完整意义的数值、数据、位数等。

）注意给定的一个没有小数点的末尾数字零提出了一个问题因为它们是模棱两可的/引起歧义的（ambiguous）。

一般来说，我们推荐此类末端零被假定不是有效的（此类零会随单位变化而取舍）。

如果加上小数点这种模棱两可就会被排除。

（1 kg可表示为1000 g，末端的0不代表测量精度；而1.0 kg可表示为1000.0 g，末端的0则代表测量精度。

）那么，小数点前面的（preceding）0却是有意义的。

化学专业英语-化学专业英语课-期末考试试卷

化学专业英语试卷学号：姓名：成绩：一：把下列单词或词组译成英文（本题共30 分，每小题 1 分)1。

Ni（ClO4）23. FeCl25。

Al(NO3）37。

MnO29. N2O311. NaClO13. P2O515. KMnO417。

盐酸19。

KCN21。

5-甲基-4—丙基壬烷23. 四氯化碳25. 中和27. 比热容29. 酸酐2. CuSO44. CoCO36。

Ca(C2H3O2）28. H2SO410. 六氰合铁（Ⅱ）酸钾12。

Ag2SO314。

草酸铅16. Zn(OH)218. 磷酸根20. 2,3-二甲基戊烷22. 2，3,7-三甲基—5-乙基辛烷24. 石蕊试纸26。

滴定28. 非电解质30。

配位化合物二、把下列句子译成英文(本题共30 分，每小题 6 分）1．包括所有的过渡和内过渡元素在内的大多数元素都是金属。

2. 碱式盐具有碱的性质,能够同酸反应生成正盐和水3．能量不会产生也不会消亡，即宇宙中的能量是守恒的。

4. 当酸的当量等于碱的当量时中和反应就发生了5。

如果△G 是正值，表示给定过程不能自发发生；不过其反向反应可以自发进行。

三。

把下列短文译成汉语(本题共40 分,每小题10 分）1. Without chemistry our lives would be unrecognisable, for chemistry is at work all around us。

Think what life would be like without chemistry — there would be no plastics，no electricity and no protective paints for our homes. There would be no synthetic fibres to clothe us and no fertilisers to help us produce enough food。

化学化工类专业英语自我介绍

化学化工类专业英语自我介绍English:Hello, my name is [Your Name] and I am a student majoring in Chemical Engineering. I have always been intrigued by the fascinating world of chemistry and how it can be applied to real-world problems. I am passionate about finding innovative solutions to environmental issues and improving processes in the chemical industry. During my academic career, I have excelled in courses such as Organic Chemistry, Thermodynamics, and Chemical Reaction Engineering. I have also gained practical experience through internships at chemical companies, where I worked on projects related to process optimization and sustainable energy production. In addition to my academic achievements, I am a proactive team player with strong communication and problem-solving skills. I am excited about the opportunity to further develop my knowledge and skills in the field of Chemical Engineering and make a positive impact on society through my work.Translated content:你好，我叫[你的名字]，我是一名主修化学工程的学生。

化学专业基础英语作业一

化学专业基础英语作业一
生物科学（biological sciences）植物学（botany）
生理学（physiology）生态学（ecology）
遗传学（genetics）化学变化（chemical change）物理变化（physical change）有机化学（organic chemistry）分析化学（Analytical chemistry）定性分析，qualitative analysis 定量分析，quantitative analysis 物理化学（Physical chemistry）生物化学（Biochemistry）生物无机化学（Bioinorganic chemistry）药物化学（Pharmaceutical chemistry）临床化学（Clinical chemistry）聚合物化学（Polymer chemistry）石英（quartz）
农业/农艺化学（Agricultural chemistry）杀虫剂（pesticides）化学工程（Chemical engineering）蒸馏（distilling）
研磨（grinding）普通化学（General Chemistry）描述化学（discriptive chemistry）化学原理（principles of chemistry）加速（speed up）减慢（slow down）
燃烧（combustion）社会科学（social science）
社会学（sociology）经济学（economics）药理学家（pharmacologist）质量控制（quality control）环境污染（environ'mental pollution）。

化学专业英语课后练习题含答案

化学专业英语课后练习题含答案题目：1.What is the molecular formula for acetic acid?2.What is the common name for sodium chloride?3.What is HNO3? What does it do?4.What is the chemical formula for ammonium nitrate?5.What is the difference between an organic and inorganiccompound?6.What is the difference between an acid and a base?答案：1.The molecular formula for acetic acid is C2H4O2.2.The common name for sodium chloride is table salt.3.HNO3 is nitric acid. It is a strong acid and is used in theproduction of fertilizers, explosives, and dyes.4.The chemical formula for ammonium nitrate is NH4NO3.5.An organic compound contns carbon atoms while inorganiccompounds do not.6.Acids release hydrogen ions (H+) in aqueous solutions whilebases release hydroxide ions (OH-) in aqueous solutions. Acids have a pH less than 7 while bases have a pH greater than 7.解析：1.Acetic acid is a weak acid with a sweet smell and taste. Itsmolecular formula is C2H4O2 and it is also known as ethanoic acid.It is used in the manufacture of various chemicals, solvents,coatings, and plastics.2.Sodium chloride is an inorganic compound with the chemicalformula NaCl. It is commonly used as a seasoning and preservative for food. It is also used in the chemical industry for various purposes, such as the production of chlorine, sodium hydroxide, and soda ash.3.Nitric acid is a strong acid with the chemical formula HNO3.It is a highly corrosive and toxic liquid that is used in theproduction of fertilizers, explosives, and dyes. It also has other industrial and laboratory applications, such as the etching of metals and the synthesis of organic compounds.4.Ammonium nitrate is an inorganic compound with the chemicalformula NH4NO3. It is a common fertilizer that is used to supply nitrogen to plants. It is also used as an explosive in mining, quarrying, and construction.anic compounds are based on carbon atoms, while inorganiccompounds do not contn carbon atoms. Organic compounds can befound in living organisms and are usually covalently bonded.Inorganic compounds are often ionic or covalent and are found in non-living things, such as rocks and minerals.6.Acids are compounds that release hydrogen ions (H+) in aqueous solutions, while bases release hydroxide ions (OH-) in aqueous solutions. Acids are characterized by a sour taste, and have a pH less than7. Bases are characterized by a bitter taste and slippery feel. They have a pH greater than 7. The pH scale is used to measure the acidity or basicity of a substance, with 7 being neutral.。

化工英语试卷参考

化工英语试卷参考有关化工英语试卷范文参考化工专业英语试卷一，Give a definition for the following words. 1, Chemical Industry: A large group of industry that use chemical and engineering principles to separate or change materials into salable product.2,Chemical engineering：chemical engineering is that branch of engineering which is concerned with the study of the design, manufacture, and operation of plant and machinery in industrial chemical processes. 3Filtration: the separation of solids from a suspension in a liquid by means of a porous medium or screen which retains the solids and allows the liquid to pass is termed filtration.4,Unit operations: The unit operations were conceived as an organized means for discussing the many kind of equipment-oriented physical processes required in the process industries. 二，fill in the blanks.1，Urea-formaldehyde and polyurethanes, are important insulating materials for reducing heat losses and hence reducing energy usage 2Agriculture relies on the chemical industry for its large quantities of artificial fertilizers and crop protection chemicals .3，The applied or more targeted type of research and development commonly carried out in industry can be of several types and we will briefly consider each. They are:(ⅰ)product development, (ⅱ) process development,(ⅲ) process improvement and (ⅳ) applications development 4，Usually a chemical plant may compose of many process units,such as reactors, tanks , distillation columns, heat exchanges,pumbs, compressors, control and instrumentation devices and so on.三．According to the textbook, answer questions. 1, Which factors depend on in process development for a new product? Process development for a new product depends on things such as the scale on which it is to be manufactured, the by-products formed and their removal/recovery, and required purity. 2, Whats the classical role of the chemical engineer? The classical role of the chemical engineer is to take the discoveries made by the chemist in the laboratory and develop them into money--making, commercial-scale chemical processes. 3, List some advice for both enjoying and improving your engineering work? Enhance technical skills, hone interpersonal skills, do the whole job, see the big picture, be a leader, be a mentor, beware of diversions, keep fit, enjoy your profession. 4,What four concepts are basic and form the foundation for the calculation of all operations? The Material Balance, The Energy Balance, The Ideal Contact, Rates of an Operation.of “research” and “development”?Research can be thought of as the activity which products new ideas and knowledge whereas developments is putting those ideas into practices as new process and products.7,What’s the main task of the basic chemi cal industry?The job of the basic chemicals industry is to find economical ways of turning raw materials intouseful intermediates.四，Connection.1, the Fluid flow 1,This is a special case of heat transfer ,Which deals with evaporation of a volatile solvent suchas water from a nonvolatile solute such as salt or any other material in solution2 Heat transfer 2, This concerns the principles that determine the flow or transportation of any fluid flow one point to another3 Evaporation 3,This process involves the diffusion of a solute from a liquid or gas through a semipermeable membrane barrier to another fluid.4 Distillation 4,This unit operation deals with the principles that govern accumulation and transfer of heat and energy from one place to another5Membrane separation 5,This concerns the removal of a solute such as a salt from a solution by precipitating the solute from the solution。

2012年高考英语模拟试卷3(含答案).pdf

B．4Fe+3O2=====2Fe2O3
C．2H2O2=====2H2O+O2↑
D．S+O2====SO2↑
4．纯净的氢气在氧气中燃烧，该反应中氢气、氧气、水的质量比是
()
A．2：l：2
B．1：8：9
C．4：16：32 D．2：32：18
5．甲烷（CH4）v(CH4)：v(O2)等于
①原子数目②分子数目③元素种类④物质⑤物质的种类 ⑥原子的种类 ⑦分子的种类
2、写出下列反应的文字表示式，并在各物质名称下面写出化学式。
（1）硫在氧气中燃烧
（2）镁在空气中燃烧
（3）氢气在氧气中燃烧
（4）过氧化氢制氧气
3、下列四种方式都可以表示铁丝在氧气中燃烧的反应。你认为哪种方式更能简捷、准确地记录和描述这一反应
微观上：
微观上：表示反应物和生成物之间的
比
[提问]大家可能都听说过，前几年有些别有用心的人宣扬“水变燃油”。想一下可能吗？为什么？
（三）书写方程式遵循的原则
一是必须以
为基础；二是遵守
定律。
[思考1]P+O2P2O5，这个式子能不能称为化学方程式?
[思考2]怎样才能使它成为符合质量守恒定律的化学方程式呢?
？它有哪些优点？
① 细铁丝在氧气中燃烧生成四氧化三铁 ② 铁 + 氧气四氧化三铁
③ Fe +O2Fe3O4
④ 3 Fe +2O2Fe3O4
4、自学课本第9页，以下问题：
CO2为例)
讨论回答：(1)
（2）
(3)
归纳总结：
质的方面：表示
和
及反应条件
宏观上：表示
和
之间的质量比

化学英语作文模板万能

化学英语作文模板万能## Universal Chemical English Essay Template。

Introduction。

State the thesis statement, which should be a concise statement of the main argument.Provide a brief overview of the topic and its importance.Body Paragraph 1。

Discuss the first point that supports the thesis statement.Provide evidence from credible sources to support your claim.Use clear and concise language.Body Paragraph 2。

Discuss the second point that supports the thesis statement.Introduce new evidence and perspectives.Explain the implications of the evidence.Body Paragraph 3 (Optional)。

Provide an additional point of support for the thesis statement.This paragraph is optional and can be omitted if there is sufficient evidence in the first two paragraphs.Counterargument。

Address potential objections to the thesis statement.Provide evidence or reasoning to refute the counterarguments.Show that you have considered opposing viewpoints.Conclusion。