Chemistry
Cambridge IGCSE 0620 · Paper 4 (Extended) practice · 958 questions
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States and Atomic Structure
98 Q
States of matter
The kinetic particle theory
Changes of state and heating/cooling curves
Diffusion and the effect of mass
Stoichiometry
80 Q
Formulae and equations
Writing chemical formulae
Balancing symbol equations
Ionic equations and state symbols
The mole and calculations
Relative atomic and formula mass
The mole and the Avogadro constant
Reacting mass calculations
Concentration of solutions
Calculations with gas volumes
Empirical and molecular formulae
Percentage yield and percentage purity
Titration calculations
Electrochemistry and Energetics
47 Q
Chemical Reactions
71 Q
Rate of reaction
Factors affecting the rate of reaction
Rate explained by collision theory
Interpreting rate graphs
Catalysts and enzymes
Acids, Bases and Salts
101 Q
Acids and bases
Properties and reactions of acids
Properties and reactions of bases and alkalis
The pH scale and indicators
Strong and weak acids
Acidic, basic, amphoteric and neutral oxides
Periodic Table and Metals
74 Q
The Periodic Table
Arrangement and trends in the Periodic Table
Group I: the alkali metals
Group VII: the halogens
Group VIII: the noble gases
The transition elements
Metals
Physical and chemical properties of metals
The reactivity series
Reactions of metals with water, acids and oxygen
Extraction of metals from ores
Extraction of iron in the blast furnace
Corrosion of metals and its prevention
Alloys and their properties
Environmental and Organic Chemistry
114 Q
Chemistry of the environment
Air quality and pollutants
Greenhouse gases and climate change
Water supply, treatment and tests
Fertilisers and the nitrogen cycle
Experimental Techniques and Analysis
33 Q
Practical Skills
189 Q
Apparatus and measurement
Naming apparatus and its use
Reading a burette
Reading a thermometer or measuring cylinder
Choosing apparatus to measure a quantity
Recording and processing data
Constructing and completing a results table
Calculating means, changes and rates
Working out a titre from burette readings
Graphs
Plotting a graph and drawing the line
Reading a value from a graph
Finding a rate from a graph
Separation and purification
Filtration and crystallisation
Simple and fractional distillation
Chromatography and Rf values
Drying and obtaining a pure product