专业英语-week 2.ppt

Reduction 还原 2Al ＋ Fe2O3 Al2O3 ＋ 2Fe Precipitate 沉淀 AgNO3 ＋ NaCl AgCl ＋ NaNO3 Residue 残留物，残渣 Concentration 浓度 the amount of solute / volume of solution Molar concentration 摩尔浓度 1 mole of solute / 1 liter of solution 1M ＝ 1 mole / L Normal concentration 当量浓度 1 equivalent of solute / 1 liter of solution 1N ＝ 1 equivalent / L Beaker 烧杯 Burette clamp Flask 烧瓶 滴定管夹 Dropper 滴管 Bushnerˊs funnel 布氏漏斗 Crucible tongs 坩埚钳 Distilling head 蒸馏头 Tripod 三脚架 Conical flask 锥形瓶 Volumetric flask 容量瓶 Graduated cylinder 量筒 Long-stem funnel 长颈漏斗 Rubber pipette bulb 洗耳球 Test tube holder 试管夹 Glass rod 玻璃棒 The end. Lesson 1. Introduction of Inorganic Chemistry Inorganic chemistry is not an isolated branch of chemistry. If organic chemistry is considered to be the ‘chemistry of carbon’, then inorganic chemistry is the chemistry of all elements except carbon. Words and phrases: inorganic chemistry 无机化学 organic chemistry 有机化学 element n. 元素 carbon n. 碳 Inorganic chemistry is the study of the reactions and properties of all the chemical compounds that do not contain carbon-hydrogen bonds (which are organic compounds). Words: reaction n. 反应 react v. property n. 性质 chemical adj. 化学的 n. 化学品 compound n.化合物 bond n. 键 Inorganic chemistry covers an extremely wide range of chemicals and it is classified according to similar groups, periods and properties. So, for example, the compounds of elements in the same group or period of the periodic table are compared. This leads to the study of the structure of the atoms, as well as the bonds between them. Words and phrases: group n. 族 period n. 周期 periodic table 周期表 One aspect of many inorganic chemicals is the formation of ionic compounds. Ions are charged particles which combine with oppositely charged particles to form compounds. As solids these compounds do not conduct electricity, but as sol