Specification points
WJEC GCSE Chemistry 3410QS
178 points in 4 topics, with WJEC's codes and titles.
Codes and titles are read by a script from WJEC's published specification and have not been checked by a person. What each point covers is in the specification itself: WJEC’s specification.
SE Scientific enquiry skills
- SE1 Benefits and challenges of scientific enquiry
- SE2 Scientific models
- SE3 Informed decisions from scientific enquiry
- SE4 Designing a method of enquiry
- SE5 Collecting, recording and presenting primary data
- SE6 Gather and present secondary data, while evaluating data
- SE7 Analysing data
- SE8 Forming conclusions and evaluating approaches
1 Unit 1: Chemical Substances, Reactions and Essential Resources
- 1.1 The Nature of Substances and Chemical Reactions
- 1.1(a) Elements
- 1.1(b) Elements as substances made up of only one type of atom
- 1.1(c) Compounds
- 1.1(d) Chemical symbols and formulae
- 1.1(e) Representing molecules with diagrams
- 1.1(f) Formulae of ionic compounds
- 1.1(g) Relative atomic mass and relative molecular (formula) mass
- 1.1(h) The percentage composition of compounds
- 1.1(i) Mixtures and separation
- 1.1(j) Chromatographic data analysis and Rf values
- 1.1(k) Chemical reactions as rearrangement of atoms
- 1.1(l) Evidence of chemical reactions
- 1.1(m) Word equations
- 1.1(n) Balanced chemical equations
- 1.1(o) The percentage yield of a chemical reaction
- 1.1(p) Formula from reacting masses
- 1.1(q) Reacting masses from equations
- 1.1(r) The Avogadro constant and the mole
- 1.2 Atomic Structure and the Periodic Table
- 1.2(a) Atoms containing a positively charged nucleus with orbiting negatively charged electrons
- 1.2(b) Atomic nuclei containing protons and neutrons
- 1.2(c) The relative masses and relative charges of protons, neutrons and electrons
- 1.2(d) Atoms having no overall electrical charge
- 1.2(e) The terms atomic number, mass number and isotope
- 1.2(f) Protons, neutrons and electrons
- 1.2(g) Relative atomic mass from isotopes
- 1.2(h) Arrangement of the Periodic Table
- 1.2(i) Metals and non-metals in the Periodic Table
- 1.2(j) The electronic structures of the first 20 elements
- 1.2(k) Electronic structure and the Periodic Table
- 1.2(l) Group trends in properties
- 1.2(m) Loss and gain of electrons in reactions
- 1.2(n) Reactivity trends in Groups 1 and 7
- 1.2(o) The reactions of the alkali metals with air/oxygen, the halogens and water
- 1.2(p) The test used to identify hydrogen gas
- 1.2(q) The reactions of halogens with alkali metals and with iron
- 1.2(r) Halogen displacement reactions
- 1.2(s) Properties and uses of chlorine and iodine
- 1.2(t) Flame tests and halide tests
- 1.2(u) Group 0 gases and their uses
- 1.3 Water
- 1.3(a) Composition of natural water
- 1.3(b) Sustainable water supply
- 1.3(c) The treatment of the public water supply using sedimentation, filtration and chlorination
- 1.3(d) Fluoridation of water
- 1.3(e) Desalination of sea water
- 1.3(f) The separation of water and other miscible liquids by distillation
- 1.3(g) Simple methods to determine solubility and produce solubility curves
- 1.3(h) The interpretation of solubility curves
- 1.3(i) Hard and soft water
- 1.3(j) The difference between temporary and permanent hardness
- 1.3(k) Softening water
- 1.3(l) Benefits and drawbacks of hard water
- 1.4 The Ever-changing Earth
- 1.4(a) Structure of the Earth
- 1.4(b) Plate tectonics and continental drift
- 1.4(c) Processes at plate boundaries
- 1.4(d) Formation of the early atmosphere
- 1.4(e) Present atmosphere and how it has changed
- 1.4(f) Maintaining atmospheric oxygen and carbon dioxide
- 1.4(g) Effects of carbon dioxide and sulfur dioxide emissions
- 1.4(h) Tackling global warming and acid rain
- 1.4(i) The air as a source of nitrogen, oxygen, neon and argon
- 1.4(j) The tests used to identify oxygen gas and carbon dioxide gas
- 1.5 Rate of Chemical Change
- 1.5(a) Measuring rates of reaction
- 1.5(b) Factors affecting rate of reaction
- 1.5(c) Particle theory and rates of reaction
- 1.5(d) Catalysts and activation energy
- 1.5(e) Enzymes as biological catalysts which catalyse particular reactions under particular conditions
- 1.5(f) Uses of enzymes
- 1.6 Limestone
- 1.6(a) Thermal decomposition of metal carbonates
- 1.6(b) Limestone, quicklime and slaked lime
- 1.6(c) The limestone cycle
- 1.6(d) Uses of limestone
- 1.6(e) The social, economic and environmental benefits and drawbacks of limestone quarrying
2 Unit 2: Chemical Bonding, Application of Chemical Reactions and Organic Chemistry
- 2.1 Bonding, Structure and Properties
- 2.1(a) Properties of metals and ionic and covalent substances
- 2.1(b) Metallic bonding and properties of metals
- 2.1(c) Ionic bonding and dot and cross diagrams
- 2.1(d) Giant ionic structures
- 2.1(e) Covalent bonding and dot and cross diagrams
- 2.1(f) Simple molecular structures and intermolecular forces
- 2.1(g) Diamond, graphite, fullerenes, nanotubes and graphene
- 2.1(h) Bulk materials and individual atoms
- 2.1(i) Nano-scale silver and titanium dioxide
- 2.1(j) Risks of nano-scale particles
- 2.1(k) Smart materials
- 2.2 Acids, Bases and Salts
- 2.2(a) The pH scale and acid strength
- 2.2(b) Solutions of acids containing hydrogen ions and alkalis containing hydroxide ions
- 2.2(c) Acids with metals and the reactivity series
- 2.2(d) The neutralisation of dilute acids with bases (including alkalis) and carbonates
- 2.2(e) Neutralisation
- 2.2(f) Acid–carbonate reaction as a test
- 2.2(g) Preparing crystals of soluble salts
- 2.2(h) Salts of hydrochloric, nitric and sulfuric acids
- 2.2(i) The test for sulfate ions
- 2.2(j) Titration
- 2.2(k) The concentration of a solution in mol dm⁻³
- 2.2(l) Calculations involving neutralisation reactions in solution, using a balanced chemical equation
- 2.2(m) Dilute and concentrated; strong and weak acids
- 2.2(n) Reactions of strong and weak acids compared
- 2.2(o) The preparation of insoluble salts by precipitation reactions
- 2.3 Metals and their Extraction
- 2.3(a) Ores and metal extraction
- 2.3(b) Native metals and difficulty of extraction
- 2.3(c) Displacement and relative reactivity of metals
- 2.3(d) Reduction and oxidation in terms of removal or gain of oxygen
- 2.3(e) The blast furnace
- 2.3(f) Electrolysis of molten ionic compounds
- 2.3(g) Reduction and oxidation in terms of gain or loss of electrons
- 2.3(h) Extraction of aluminium by electrolysis
- 2.3(i) Properties and uses of iron, aluminium, copper and titanium
- 2.3(j) Properties of transition metals
- 2.3(k) Identifying transition metal ions
- 2.3(l) Alloys
- 2.3(m) The electrolysis of water (including electrode equations)
- 2.3(n) Electrolysis of aqueous solutions such as copper(II) chloride (including electrode equations)
- 2.3(o) Electrolysis of aqueous solutions
- 2.3(p) Uses of electrolysis
- 2.3(q) Economic viability and sustainability of extraction
- 2.4 Chemical Reactions and Energy
- 2.4(a) Exothermic and endothermic reactions
- 2.4(b) Energy profiles for exothermic and endothermic reactions
- 2.4(c) Activation energy
- 2.4(d) Bond energies and energy change
- 2.5 Crude Oil, Fuels and Organic Chemistry
- 2.5(a) Crude oil
- 2.5(b) The fractional distillation of crude oil
- 2.5(c) Fractions as containing mixtures of hydrocarbons (alkanes) with similar boiling points
- 2.5(d) Trends in properties of crude oil fractions
- 2.5(e) Importance and impact of the oil industry
- 2.5(f) The combustion reactions of hydrocarbons and other fuels
- 2.5(g) Energy released by burning fuels
- 2.5(h) Hydrogen as a fuel
- 2.5(i) The fire triangle in fire-fighting and fire prevention
- 2.5(j) Cracking
- 2.5(k) General formulae of alkanes and alkenes
- 2.5(l) The names and molecular and structural formulae for simple alkanes and alkenes
- 2.5(m) Isomerism in more complex alkanes and alkenes
- 2.5(n) The names of more complex alkanes and alkenes
- 2.5(o) Addition reactions of alkenes; bromine water test
- 2.5(p) Addition polymerisation
- 2.5(q) Properties and uses of plastics
- 2.5(r) Disposal of plastics
- 2.5(s) Fermentation to make ethanol
- 2.5(t) The use of potassium dichromate(VI) in testing for alcohols
- 2.5(u) Alcoholic drinks: social and economic impact
- 2.5(v) Ethanol as a solvent and fuel
- 2.5(w) The names and molecular and structural formulae for alcohols, including positional isomers
- 2.5(x) The microbial oxidation of ethanol to ethanoic acid (a carboxylic acid)
- 2.5(y) Infrared spectroscopy
- 2.6 Reversible Reactions, Industrial Processes and Important Chemicals
- 2.6(a) Reversible reactions
- 2.6(b) The Haber process
- 2.6(c) Conditions for ammonia production
- 2.6(d) The test used to identify ammonia gas
- 2.6(e) The contact process
- 2.6(f) Uses of sulfuric acid
- 2.6(g) Concentrated sulfuric acid as a dehydrating agent
- 2.6(h) Producing nitrogenous fertilisers
- 2.6(i) Identifying ammonium ions with aqueous hydroxide
- 2.6(j) Benefits and problems of nitrogenous fertilisers