HKFYG Lee Shau Kee College

Integrated Science

Plans

Curriculum of Chemistry for S.3

Ch 1 Introducing chemistry
1.1 What is chemistry?	Introducing chemistry
1.2 Why study chemistry?	Chemistry in our lives
1.3 Laboratory safety	Laboratory safety rules
1.4 Hazard warning labels	Common hazard warning labels for chemicals The hazardous nature of household chemicals
1.5 Common apparatus in the laboratory	Common apparatus Microscale apparatus

Ch 2 The atmosphere
2.1 The Earth	The Earth’s crust, the ocean and the atmosphere as major sources of chemicals List of useful resources from the Earth
2.2 Classification of matter	Definition Classifying substances as pure substances or mixtures
2.3 Elements and compounds	Definitions Some common compounds Classifying substances as elements, compounds or mixtures
2.4 The atmosphere	Composition of gases in the air (percentage by volume)
2.5 Separation of mixtures	Names of common techniques for separating components of mixtures
2.6 Separating oxygen and nitrogen from the air	Main stages in separating oxygen and nitrogen from air. Purification, liquefaction of air, fractional distillation of liquid air
2.7 Physical and chemical properties	Definitions Classifying statements as describing physical or chemical properties
2.8 Test for oxygen	Test fro oxygen
2.9 Air quality in Hong Kong	What pollution is Air quality in Hong Kong

Ch 3 The ocean
3.1 Sea water: a vast solution	Solution, solute and solvent Dilute, concentrated and saturated solutions
3.2 Obtaining common salt from sea water	Filtration, evaporation and crystallization
3.3 obtaining pure water from sea water	Distillation
3.4 What does common salt contain?	Flame test Test for chloride
3.5 Test for the presence of water in a sample	Test for the presence of water in a sample
3.6 Composition of sea water	Major elements in sea water
3.7 Getting useful substances from sea water	Electrolysis of sea water
3.8 The salt industry	Common uses of hydrogen, chlorine and sodium hydroxide
3.9 Physical and chemical changes	Definitions Classifying processes as physical or chemical changes

Ch 4 Rocks and minerals
4.1 Metals in the Earth’s crust	Minerals and ores Most metals exixt as compounds
4.2 Extracting metals from their ores	Physical methods Heating the ore alone Heating the ore with carbon Electrolysis of molten ore
4.3 Investigating calcium carbonate	Action of heat, water and dilute acid on calcium carbonate Word equations
4.4 Formation of chalk, limestone and marble	The three main forms of calcium carbonate Their formation from sea animals
4.5 Formation of limestone caves	Weathering and erosion How limestone caves form Word equations

Ch 5 Atomic structure
5.1 What is an element made of?	Elements are made of atoms Atoms of different elements are different
5.2 Symbols for elements	Symbols for some common elements
5.3 States of elements	Elements exist in different states Examples
5.4 How to classify elements?	General properties of metals and non-metals Metalloids
5.5 Basic structure of an atom	Symbol, position, charge and mass of each subatomic particle
5.6 Atomic number	Definition Atomic number of the 20 simplest elements
5.7 Mass number	Definition Calculation numbers of protons, neutrons and electrons from mass number and atomic number of an atom
5.8 Isotopes	Definition Examples
5.9 Relative masses of atoms and caron-12 scale	Relative isotopic mass and relative atomic mass Calculating relative atomic mass of an element
5.10 The arrangement of electrons in atoms	What is electronic arrangement Electronic arrangements of atoms of the 20 simplest elements

Ch 6 Periodic Table
6.1 How to group elements together?	Grouping elements according to their properties
6.2 The periodic table	Introduction to the periodic table Groups Periods
6.3 Patterns across the periodic table	Different blocks of elements in the periodic table
6.4 Group I elements-alkali metals	Physical properties Similarities of the elements Differences in reactivity of the elements
6.5 Group II elements-alkaline earth metals	Physical properties Similarities of the elements Differences in reactivity of the elements
6.6 Group VII elements-halogens	Physical properties Similarities of the elements Differences in reactivity of the elements
6.7 Group 0 elements-noble gases	Physical properties Similarities of the elements Stability of the elements
6.8 Predicting the chemical properties of unfamiliar elements	Predicting chemical properties of unfamiliar elements in Groups I, II and VII

Ch 7 Chemical bonds
7.1Ionic and covalent bonds	Introduction to chemical bonds, ionic and covalent bonds
7.2 From atoms to ions	Formation of positive and negative ions from atoms
7.3 Predicting the charge of an ion	Common ions with stable electronic arrangements as that of atoms of noble gases
7.4 Ionic bonds	Definition Bonding in sodium chloride Bonding in magnesium fluoride Bonding in lithium oxide
7.5 Compounds containing polyatomic ions	Common polyatomic ions
7.6 Names of ions	Names of positive ions Names of negative ions
7.7 Naming ionic compounds	How to name ionic compounds
7.8 Colours of ionic compounds	Colours of some ions in aqueous solutions
7.9 Chemical formulae of ionic compounds	What is chemical formula How to write chemical formulae of ionic compounds
7.10 Covalent bonds in non-metal elements	Definition The hydrogen molecule The chlorine molecule The oxygen molecule The nitrogen molecule Single bond, double bond and triple bond
7.11 Covalent compounds	The hydrogen chloride molecule The tetrachloromethane molecule The water molecule The ammonia molecule The carbon dioxide molecule
7.12 Writing chemical formulae of covalent compounds	How to write chemical formulae of covalent compounds
7.13 Predicting the formation of ionic and covalent compounds	Predict whether the compound formed is ionic or covalent from information of elements involved
7.14 Metallic bonds in metals	Introduction to metallic bond
7.15 Relative molecular mass and formula mass	Definitions How to calculate relative molecular masses and formula masses