Chemistry (9476)

32个单元 · 64个章节

免费的Chemistry (9476)学习笔记,专为GCE A-Level - Higher 2 (H2)学生准备。下列每个章节都涵盖一个重点主题,附有例题与练习提示,可在 thinka 应用中延伸练习。

ATOMIC STRUCTURE

    CHEMICAL BONDING

      Atomic Structure, the Periodic Table and Transition Elements

      • The nucleus of the atom: neutrons and protons, isotopes, proton and nucleon numbers

      • Electrons: electronic energy levels, ionisation energies, atomic orbitals, extranuclear structure

      • The Periodic Table

      • General physical and characteristic chemical properties of the first set of transition elements, scandium to copper

      • Colour of complexes

      Chemical Bonding and Structure

      • Ionic bonding, metallic bonding, covalent bonding and co-ordinate (dative covalent) bonding

      • Shapes of simple molecules and bond angles

      • Bond polarities and polarity of molecules

      • Intermolecular forces, including hydrogen bonding

      • Bond energies and bond lengths

      • Lattice structure of solids

      • Bonding and physical properties

      THE GASEOUS STATE

        THEORIES OF ACIDS AND BASES

          The Gaseous State and Stoichiometry

          • Ideal gas behaviour and deviations from it

          • pV = nRT and its use in determining a value for Mr

          • Dalton’s Law and its use in determining the partial pressures of gases in a mixture

          • Relative masses of atoms and molecules

          • The mole, the Avogadro constant

          • The calculation of empirical and molecular formulae

          • Reacting masses and volumes (of solutions and gases)

          THE PERIODIC TABLE

            Chemical Energetics and Reaction Kinetics

            • Enthalpy changes: ΔH, of formation; combustion; hydration; solution; neutralisation; atomisation; bond energy; lattice energy; electron affinity

            • Hess’ Law, including Born-Haber cycles

            • Entropy and Free Energy

            • Simple rate equations; orders of reaction; rate constants

            • Concept of activation energy

            • Effect of concentration, temperature, and catalysts on reaction rate

            • Homogeneous and heterogeneous catalysis

            • Enzymes as biological catalysts

            THE MOLE CONCEPT AND STOICHIOMETRY

              Chemical Equilibria and Aqueous Solutions

              • Chemical equilibria: reversible reactions; dynamic equilibrium

              • Arrhenius, Brønsted-Lowry and Lewis theories of acids and bases

              • Acid dissociation constants, Ka and the use of pKa

              • Base dissociation constants, Kb and the use of pKb

              • The ionic product of water, Kw

              • pH: choice of pH indicators

              • Buffer solutions

              • Solubility product; the common ion effect and complex ion formation

              Organic Chemistry: Foundations

              • Functional groups and the naming of organic compounds

              • Empirical, molecular and structural formulae

              • Shapes of organic molecules; σ and π bonds

              • Isomerism: constitutional (structural); cis-trans; enantiomerism

              • Common terms for organic reactions and reactivities

              • Reactivity of some classes of compounds and their characteristic organic reaction mechanisms

              CHEMICAL ENERGETICS: THERMOCHEMISTRY AND THERMODYNAMICS (GIBBS FREE ENERGY AND ENTROPY)

                Hydrocarbons and Halogen Derivatives

                • Alkanes (exemplified by ethane)

                • Alkenes (exemplified by ethene)

                • Arenes (exemplified by benzene and methylbenzene)

                • Hydrocarbons as fuels

                • Halogenoalkanes

                • Relative strength of the carbon-halogen bond

                • Unreactivity of halogenoarenes

                REACTION KINETICS

                  CHEMICAL EQUILIBRIA

                    Alcohols, Carbonyl Compounds and Carboxylic Acids

                    • Alcohols (exemplified by ethanol)

                    • Phenol

                    • Aldehydes (exemplified by ethanal)

                    • Ketones (exemplified by propanone and phenylethanone)

                    • Carboxylic acids (exemplified by ethanoic acid and benzoic acid)

                    • Acyl chlorides (exemplified by ethanoyl chloride)

                    • Esters (exemplified by ethyl ethanoate and phenyl benzoate)

                    ACID-BASE EQUILIBRIA

                      Nitrogen Compounds, Polymers and Electrochemistry

                      • Amines (exemplified by ethylamine and phenylamine)

                      • Amides (exemplified by ethanamide)

                      • Amino acids (exemplified by aminoethanoic acid)

                      • Addition and condensation of polymers

                      • Proteins

                      • Biodegradability of poly(alkenes), polyesters and polyamides

                      • Redox processes and electrode potentials

                      • Electrolysis

                      SOLUBILITY EQUILIBRIA

                        ORGANIC CHEMISTRY INTRODUCTION

                          ISOMERISM

                            ORGANIC REACTIONS AND MECHANISMS

                              HYDROCARBONS

                                HALOGEN DERIVATIVES

                                  HYDROXY COMPOUNDS

                                    CARBONYL COMPOUNDS

                                      CARBOXYLIC ACIDS AND DERIVATIVES

                                        NITROGEN COMPOUNDS

                                          POLYMERS

                                            ELECTROCHEMISTRY

                                            • Redox processes: electron transfer and changes in oxidation number (oxidation state)

                                            AN INTRODUCTION TO THE CHEMISTRY OF TRANSITION ELEMENTS

                                              立即实践所学

                                              不要只看笔记,用无限AI题库练习,即时获得批改反馈。加入超过100,000名正在提升成绩的学生。

                                              看完笔记了?用AI练习题测试自己

                                              立即练习此课题