All subjectsNatural science · 122 topics
Chemistry
Matter, atomic structure, bonding, stoichiometry, energetics, electrochemistry and organic chemistry.
Unit 1: Chemistry and its importance
- Branches of chemistry
- Chemistry in daily life and industry
- Laboratory apparatus and safety rules
- Scientific method
Unit 2: Matter and its properties
- States of matter and the particle model
- Physical and chemical changes
- Elements, compounds and mixtures
- Separation techniques
- Density and other physical properties
Unit 3: Atomic structure
- Historical development of atomic theory
- Protons, neutrons and electrons
- Atomic number and mass number
- Isotopes and relative atomic mass
- Electron arrangement in shells
Unit 4: Periodic classification
- Early classification attempts
- The modern periodic table
- Groups and periods
- Metals, non-metals and metalloids
- Periodic trends
Unit 5: Chemical bonding
- Why atoms bond
- Ionic bonding
- Covalent bonding
- Metallic bonding
- Properties of bonded substances
Unit 6: Chemical reactions and equations
- Writing chemical formulas
- Balancing equations
- Types of reactions
- Law of conservation of mass
Exam tips
- • Balance every chemical equation before doing any mole calculation.
- • Learn the first 20 elements, their symbols and electron arrangements by heart.
- • Watch significant figures and units in stoichiometry answers.
- • For organic questions, name the functional group before predicting the reaction.