T.W.G.HsChenZaoMenCollege

NSS3 Combined Science(Chemistry )Syllabus and teaching Schedule (11-12)

1. Aim : To prepare the students to sit for the HKDSE in year 2012

S6
(40 periods) / Revision on laboratory safety / 1 period
Topic 6 Fossil Fuels and Carbon Compounds (Units 25 – 28) / 38 periods
Topic 7 Chemical Reactions and Energy / 11 periods

Textbook : 21st Century Combined science (Chemistry) By L.H.M. Chung

Publisher :Jing Kung Book 3A and 3B

Teaching Schedule

Date / No. of periods / Topics / Activities
This topics
were
taught
during
summer
vacation / 1 / 25.1A look at molecules of compounds in petroleum
25.2Chemistry of carbon compounds
25.3Representing molecular structures of carbon compounds / Showing Molecular model
1 / 25.4Molecular models
25.5Functional groups
25.6Homologous series
2 / 25.7The alkanes
25.8Naming straight-chain and branched-chain alkanes
25.9Naming alkenes / tutorials and exercises on the nomenclature of carbon compounds:

1 / 25.10Naming alkanols
25.11Naming alkanoic acids
1 / 26.1Risks and benefits of using fossil fuels to the societyand environment
26.2Saturated and unsaturated hydrocarbons
2 / 26.3Physical properties of alkanes
26.4Chemical properties of alkanes / Reaction of alkane and bromine
Reaction of alkene and bromine water
1 / 26.5Meeting the demand for the petrol fraction from fractionaldistillation of petroleum
26.6Cracking of fractions of petroleum
26.7Importance of cracking / Cracking of medicinal paraffin and testing the products
2 / 26.8Alkenes
26.9Physical properties of alkenes
26.10Important reactions of alkenes
26.11Wind power — An alternative source of energy / Video
Wind power station in Hong Kong
This topics
were
taught
during
summer
vacation / 1 / 27.1Alcohols in our lives
27.2Alkanols
27.3Uses of alkanols
4 / 27.4Physical properties of alkanols
27.5Chemical properties of alkanols / Oxidizing alcohols
1 / 27.6Esters / Formation of ester
1 / 28.1Plastic items in modern homes
28.2Why are plastics so useful?
28.3The rise of the modern plastics industry
28.4Thermoplastics and thermosetting plastics
1 / 28.5What is a polymer?
28.6Polymerization of ethene
2 / 28.7Addition polymerization
28.8Some common addition polymers
28.9Uses of some common addition polymers
5/9/2011-
9/9/2011 / Revision and test
9/9/2011
\
23/9/2011 / 1 / 28.10Condensation reaction and condensation polymerization
2 / 28.11Poly(ethylene terephthalate) (PET)
28.12Nylons
28.13Urea-methanal / Preparing nylon
1 / 28.14Relating the structures of plastics to their thermal properties / Animation injection moulding:

animation showing the extrusion blow moulding:

26/9/2011
\
30/9/2011 / 2 / 28.15Economic importance of plastics
28.16Environmental issues associated with the use of plastics
28.17Common methods for treating plastic waste
28.18Other possible solutions to plastic waste disposal problems
3/10/2011
\
21/10/2011 / 1 / 28.19The use of plastics for packaging: any disadvantages? / STSE Connections — Biodegradable plastics
1 / Book 3B
29.1Heat-packs and cold-packs
29.2What is energy?
29.3Specific heat capacity
29.4The system and the surroundings
29.5Internal energy of a system / Activity 29.1 — Finding pairs of chemicals that may be used to make heat-packs and cold-packs
1 / 29.6Comparing the enthalpy change (ΔH) and internal energychange (ΔE) of a system during a reaction
29.7Enthalpy change of an exothermic reaction
29.8Enthalpy change of an endothermic reaction
29.9Enthalpy changes during physical and chemical changes
1 / 29.10Thermochemical equations
29.11Explaining energy changes — breakage and formation ofchemical bonds
29.12Standard conditions for measuring enthalpy changes
29.13Standard enthalpy change of reaction / Animation: Energy changes associated with breaking and forming of chemical bonds
1 / 29.14Standard enthalpy change of formation
29.15Standard enthalpy change of combustion
29.16Standard enthalpy change of neutralization
29.17Standard enthalpy change of solution / Animations showing the heat changes when different compounds are added to water:

1 / 29.18Determining enthalpy changes of neutralization / Video :Determining the enthalpy change of neutralization of the reaction between hydrochloric acid and sodium hydroxide solution
24/10/2011
\
18/11/2011 / 1 / 29.19Determining enthalpy changes of combustion
29.20An improved apparatus: the flame calorimeter / Expt:Determining the enthalpy changes of combustion of some alcohols
2 / 30.1Hess’s Law
30.2Enthalpy level diagram and enthalpy change cycle
30.3Using Hess’s Law to determine enthalpy changes that cannotbe easily obtained by experiment / Determining the enthalpy change of thermal decomposition of potassium hydrogencarbonate
2 / 30.4Determining the enthalpy change of formation of magnesiumcarbonate from enthalpy changes of other reactions / Determining the enthalpy change of formation of magnesium oxide
21/11/2011
\
30/11/2011 / 1 / 30.5Determining the standard enthalpy change of formation of acompound from standard enthalpy changes of combustion
30.6Determining the standard enthalpy change of a reaction fromstandard enthalpy changes of formation / STSE Connections — Ethanol as fuel — Brazil Experience

6/12/2011
\ / Revision and Test

1

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