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CHEM-S1 Structure 1 - Models of the particulate nature of matter

CHEM-S1.1 Introduction to the particulate nature of matterElements, kinetic molecular theory, temperature as average kinetic energy.
CHEM-S1.2 The nuclear atomProtons/neutrons/electrons, isotopes, and mass spectra for relative atomic mass.
CHEM-S1.3 Electron configurationsEmission spectra, energy levels, sub-levels and orbitals.
CHEM-S1.4 Counting particles by mass: the moleThe mole, relative/molar mass, empirical/molecular formula, concentration.
CHEM-S1.5 Ideal gasesIdeal gas assumptions, molar volume, and the ideal gas equation PV=nRT.

CHEM-R1 Reactivity 1 - What drives chemical reactions?

CHEM-R1.1 Measuring enthalpy changesEnergy transfer, endo/exothermic reactions, standard enthalpy change.
CHEM-R1.2 Energy cycles in reactionsBond energies, Hess's law, standard enthalpies, Born-Haber cycles.
CHEM-R1.3 Energy from fuelsCombustion, fossil fuels, biofuels, and fuel cells.

CHEM-S2 Structure 2 - Models of bonding and structure

CHEM-S2.1 The ionic modelCations/anions, ionic bonding, and lattice structures.
CHEM-S2.2 The covalent modelCovalent/coordination bonds, VSEPR shapes, polarity, intermolecular forces, resonance.
CHEM-S2.3 The metallic modelMetallic bonding and how bond strength depends on charge and ionic radius.
CHEM-S2.4 From models to materialsThe bonding triangle, alloys, and addition/condensation polymers.

CHEM-R2 Reactivity 2 - How much, how fast and how far?

CHEM-R2.1 How much? The amount of chemical changeStoichiometry, limiting reactant, percentage yield, atom economy.
CHEM-R2.2 How fast? The rate of chemical changeCollision theory, activation energy, catalysts, rate equations, Arrhenius equation.
CHEM-R2.3 How far? The extent of chemical changeDynamic equilibrium, the equilibrium law, Le Chatelier's principle.

CHEM-S3 Structure 3 - Classification of matter

CHEM-S3.1 The periodic table: classification of elementsPeriods/groups/blocks, periodicity trends, oxidation states, transition-element properties.
CHEM-S3.2 Functional groups: classification of organic compoundsFormula types, functional groups, homologous series, isomerism, MS/IR/NMR analysis.

CHEM-R3 Reactivity 3 - What are the mechanisms of chemical change?

CHEM-R3.1 Proton transfer reactionsBronsted-Lowry acids/bases, pH/pOH, strong/weak acids, titration curves, buffers.
CHEM-R3.2 Electron transfer reactionsOxidation/reduction, half-equations, electrochemical cells, electrode potentials, electrolysis.
CHEM-R3.3 Electron sharing reactionsRadicals, homolytic fission, radical substitution with alkanes.
CHEM-R3.4 Electron-pair sharing reactionsNucleophiles/electrophiles, substitution and addition mechanisms, Lewis acids/bases.

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  • Chemistry · SL
  • Paper 2 · Medium
  • 90 minutes · 8 questions
  • No syllabus points selected yet

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