as requested,here are the topics for mock examination.


POA

1.correction of error.

2.partnership.

3.amalgamation.

4.bad/doubtful debts.

5.depreciation.

6.tpi + b/s + bal day adj.



MATHS

1.matrices.

2.coordinate geometry.

3.quadratic equation & algebra.

4.inequalities.

5.indices & standard form.



SOCIAL STUDIES

choose one.

1.bonding singapore.

2.governance.

3.healthcare.



CHEMISTRY

1.particulate of matter(acids,bases and salts)

-describe the solid,liquid and gaseous states of matter and explain their interconversion in terms of the kinetic particle theory and of the energy changes involved.

-classify oxides as acidic,basic,amphoteric or neutral based on metallic/non-metallic character.

-describe the techniques used in the preparation of salts(precipitation).

2.purification.

-separations and purification using paper chromatography.

3.atomic structure.

-define the term isotopes.

-deduce the numbers of protons,neutrons and electrons in atoms and ions given proton and nucleon numbers.

4.atomic structure(chemical bonding).

-define proton number(atomic number) and nucleon number(mass number)

-write electronic structures of atoms and ions.

-describe the formation of ions by electron loss/gain in order to obtain the electronic configuration of a noble gas.

-deduce the formulae of ionic compounds from the charges on the ions present and vice cersa.

5.air pollution(mole concept).

-state the sources of SO2 as sulfur dioxide from volcanoes and combustion of fossil fuels.

-calculate stoichiometric reacting masses and volumes of gases(one mole of gas occupies 24dm3 at room temperatire and pressure).

6.energy changes(periodic table).

-describe the term exothermic as a process or chemical reaction which transfers energy,often in the form of heat,to the surroundings and may be detected by and increase in temperature.

-describe lithium,sodium and potassium in Group 1(the alkali metals) as a collection of relatively soft,low density metals showing a trend in melting point and in their reaction with water.

7.organic chemistry.

-describe the properties of alkenes(exemplified by ethene) in terms of combustion and the addition reactions with bromine and hydrogen.

-describe the properties of alcohols in terms of combusion and oxidation to carboxylic acids.

8.organic chemistry.

-describe the formation of ethanol by fermentation of glucose.

-describe the manufacture of alkenes and hydrogen by cracking hydrocarbons and regconise that cracking is essential to match the demand for fractions containing smaller molecules from the refinery process.

9.air pollution.

-describe use of catalytic converters to control level of pollution.

10.qualitive analysis(acids,bases and salts).

-identification of ions and gases.

-describe use of indicators to determine pH of solutions.

11.rates of reactions(mole concept).

-describe the effect of concentration,pressure,particle size and temperature on the speeds of reactions and explain these effects in terms of collisions between reacting particles.

-interpret data obtained from experiments concerned with speed of reaction.

-draw experimental set up.

-apply the concept of solution concentration(in mol/dm3 or g/dm3) to process the results of volumetric experiments and to solve simple problems.