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

Festive holiday Homework

Dear Year 9 H, A and M students.

You have grouped yourself into a group of four or five and there are six groups in a class. You have also received a printed copy of your festive holiday homework. Each group will have different tasks. I will pass put the task of the groups on the blog as well later on.

I hope you will all enjoy doing the homework over the holiday ( something different at least), please discuss and work together as a group. Due date for the work is the second week after the school reopen. and after the holiday, we will need to work extra hard and will be very hectic and lots of extra classes, be prepared.

Lastly happy holiday.

Miss Ping Sing