蛋白质存在于所有的生物细胞中,是构成生物体最基本 的结构物质和功能物质。 蛋白质是生命活动的物质基础,它参与了几乎所有的生命活动过程
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2.1 生物膜的组成和结构 2.2 生物膜的功能 2.3 生物膜的模拟-人工膜
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一、学习普通化学的意义 1、四大基础化学无机、有机、分析、物化 2、普通化学内容
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We shall study other examples of additions to the double bonds of alkenes. We begin with the additions of hydrogen halides, sulfuric acid, water (in the presence of an acid catalyst), and halogens
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8.1 Introduction Alkenes are hydrocarbons whose molecules contain the carbon-carbon double bond. Hydrocarbons whose molecules contain the carbon-carbon triple bond are called alkynes
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7.1 Introduction 7.2 Homolytic bond dissociation nergies 7.3 The reactions of alkanes with halogens
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Chapter 6 Ionic Reactions--- Nucleophilic substitution and elimination reactions of alkylhalides (卤代烃的亲核取代反 Because halogen atoms are more electronegative 应和消除反应) than carbon, the carbon-halogen bond of alkyl halides is polarized; the carbon atom bears a partial positive charge, the halogen atom a partial negative charge
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5.1 Isomerism: Constitutionalisomers and Stereoisomers 5.2 Enantiomers and chiral
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cycloalkanes General formula CnH2n+2 for alkanes C3H8 CH3CH2CH3 Propane General formula CnH2n for cycloalkanes (环烷烃) CnH2n Cyclopropane
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The important of acid-base reaction: 1. is a simple, fundamental reaction. 2. enable you to see the mechanism of the reaction 3. illustrate the process of bond breaking and bond making 4. examine important ideas about the relationship between the structure of molecules and their reactivity
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