Questions?

Any questions, email me at singkasing@yahoo.com or look for me in the departmental office!!!!! Don't be shy, if something is difficult, it does not mean that you should stop learning, instead, try harder, eventually you will succeed.

Thursday 30 September 2010

End of year examination topics.

I have listed the topics for your easily references for revision. Do your revision and please work hard. If there is any questions, you can always look for me in the office or email me at singkasing@yahoo.com.

Topics that are included in the end-of-year examination 2010

1. Kinetic particle theory- describe solid, liquid and gaseous state of matter, the movement of particles, diffusion.

2. Atomic structures – know what proton number, neutron numbers and electron numbers are, should be able to know which is the proton and neutron number of the the element in the periodic table, define what is isotopes and explain how the elements are isotopes.

3. Describe the difference between elements, mixtures and compounds

4. Molecular compound and giant ionic lattice, compare the structures such as diamond and graphite, compare the structures of the molecular compounds. Also deduce the properties and bonding of the giant ionic lattice and molecular compound.

5. Ionic bonding – how ionic bonding is formed, between metal and non metal, draw the structure of ionic compound. ( make sure you have the brackets and charges) Deduce the formula of ionic compound, properties of ionic bonding

6. Covalent bonding – how covalent bonding is formed- the sharing of electrons between two non-metal. Draw the dot and cross diagram for the covalent compounds, properties of covalent bonding.

7. metallic bonding- metal as a lattice of positive ions in a sea of electrons, properties of metallic bonding.

8. Writing Chemical formulae, writing the formulae of ions, both monoatomic ions (which are found in the periodic table) and polyatomic ions (such as sulphate, nitrate, carbonate)

9. Writing chemical equations, balance chemical equation, writing Ionic equations (including state symbols)

10. Mole concept, calculations involving moles, mass, Mr, Ar, volume, concentration, % mass, empirical formula, molecular formula, % yield, % purity.

11. Experimental techniques – apparatus, method of purification.

12. Acid and bases: characteristics of acids and bases, neutralization, preparation of salts (soluble and insoluble salt) and oxides (acidic oxides, basic oxides and amphoteric oxides)

Ms Ping Sing

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