During the reaction between chlorine and water, thechlorine is both oxidized and reduced. Such a reaction inwhich a substance is both oxidized and reduced is called a().(2)potential energy(3)racemate(5)conjugate redox pair(6)sulfurous acid吸热反应(11)偶极矩(12)(13)化学平衡(14)反应机理
1 (2) potential energy (3) racemate (5) conjugate redox pair (6) sulfurous acid (11) 吸热反应 (12) 偶极矩 (13) 化学平衡 (14) 反应机理 During the reaction between chlorine and water, the chlorine is both oxidized and reduced. Such a reaction in which a substance is both oxidized and reduced is called a ( )
Organic chemistry: introductionOrganic chemistry: introductionAgood organic answer:makes a statementgives an example or illustrates the statementexplains it using a theory or mechanismIt will be a factual statement about physical or chemicalproperties which is explained by theories and mechanisms thatyou have learnt in physical chemistry2
2 Organic chemistry: introduction A good organic answer: makes a statement gives an example or illustrates the statement explains it using a theory or mechanism Organic chemistry: introduction It will be a factual statement about physical or chemical properties which is explained by theories and mechanisms that you have learnt in physical chemistry
Organic chemistry: introductionTheoriese.g. Factslisted with an exampletheories and ideas usedPhysical properties such as:explained in terms ofstate and fixed pointsstructure and bonding;physical propertiese.g. chain lengthsolubilityChemical properties such as:explained in terms ofreactions with water,acid-base equilibriaacid, or basereactions with oxidizingexplained in terms ofredox equilibriaor reducing agentsexplained in terms ofreactions with nucleophilesfunctional group and itsand electrophilesreactive site and mechanism
3 Organic chemistry: introduction e.g. Facts Theories listed with an example theories and ideas used Physical properties such as: state and fixed points explained in terms of physical properties structure and bonding; solubility e.g. chain length Chemical properties such as: reactions with water, explained in terms of acid, or base acid-base equilibria reactions with oxidizing explained in terms of or reducing agents redox equilibria reactions with nucleophiles explained in terms of and electrophiles functional group and its reactive site and mechanism
Organic chemistry: introductionSOMEIMPORTANTTHEMESPhysical properties in similar compounds are controlled by chainlength.The length of the chain controls the number of atoms and so thenumber of electrons and so the strength of the van der Waalsforces between molecules.Chemical properties are controlled by the kind oflinks(functional groups ) in or joined to the chain: each functionalgroup has particular reactive sites.Each reactive site gives the substance particular propertiesTwo reactive sites next to each other modify each other4
4 Organic chemistry: introduction Physical properties in similar compounds are controlled by chain length. The length of the chain controls the number of atoms and so the number of electrons and so the strength of the van der Waals forces between molecules. Chemical properties are controlled by the kind of links (functional groups ) in or joined to the chain: each functional group has particular reactive sites. SOME IMPORTANT THEMES Two reactive sites next to each other modify each other. Each reactive site gives the substance particular properties
Organic chemistry:introductionThe type of carbon skeleton can change the properties of thereactive site so compare:Alkyl(烷基)chains and ringsacyl(酰基) chainsaryl(芳基) rings-HHHHOFHH6delocalisedC=C元system-H1CH3--CH2PHHOalltheelectronsNH2CH3the group attachedgand元—HHto the acyl carbonarelocalisedHacylchainismodified5
5 Organic chemistry: introduction Alkyl(烷基) chains and rings acyl(酰基) chains aryl(芳基) rings The type of carbon skeleton can change the properties of the reactive site so compare: