2011-11-12

Biodegradable Oil Palm Waste Product



Being creative! Oil palm waste is turned to an useful paper product. Many types of brown cover notebooks on the shelves are biodegradable paper products. Not to surprised the product was invented in Malaysia.

More details, please read http://www.mysinchew.com/node/58773

2011-11-08

Writing an Inference for Reaction involving Alkali Metal


Quick tip when giving inference. Ask yourself WHAT, HOW, WHY.

How does this solution formed?  White powder reacts with//dissolve in water.
Why does this solution turns red litmus paper to blue? The solution is alkaline.
What is that solution? It is potassium hydroxide.


Inference: Potassium oxide reacts with water produce potassium hydroxide which is an alkaline solution



2011-10-30

STAR Exam Seminar on Deepavali


It was Deepavali. But 142 Sekolah Tuanku Abdul Rahman boys gathered in their school from 10.30 am - 1.00 pm to learn study skills for this coming Chemistry SPM 2011. They have shown great interest & took part actively throughout the workshop! All the best to all STAR boys!

2011-10-18

Examples of Redox Reaction

  1. Combustion of metal in oxygen
  2. Reaction between metal oxide and carbon
  3. Reaction between metal oxide and hydrogen
  4. Conversion of Fe2+ ion to Fe3+ and vice versa
  5. Displacement of metal from their salt solution
  6. Displacement of halogen
  7. Transfer of electron at a distance
  8. Rusting of iron
  9. Electrolysis of aqueous solution & molten compound
  10. Chemical cells
Tips : Students should be able to identify
  1. oxidized substance and reduced substance
  2. oxidizing agent and reducing agent all all those reactions
   and explain in terms of
  1. gain/loss of electrons
  2. change in oxidation number
Besides, the skill of writing chemical equation, half equation and overall ionic equation is too very very important.

2011-10-04

Question Analysis for Paper 3 Trial Chemistry 2011 from Different States

Question Analysis for Paper 3 Trial Chemistry 2011 from Different States
View more documents from sweemoi khor

The analysis will be updated from time to time. chem2u welcomes visitor from Penang, Selangor, Wilayah Persekutuan Kuala Lumpur, Kelantan to update the questions in their trials.

Trial Chemistry SPM 2011 from Different State

Thanks to Mr Ch'ng for his effort in collecting exam papers from different states. I believe he will update from time to time.

So far questions from the following states are uploaded:

SBP 2011: Paper1_Paper2_Paper3_Answer
Kedah 2011: Paper1_Paper2_Paper3_Answer
Terengganu 2011: Paper1_Paper2_Paper3_Answer
Negeri Sembilan 2011: Paper1_Paper2_Paper3_Answer
Johor 2011: Paper1_Paper2_Paper3_Answer
Perak 2011: Paper1_Paper2_Paper3_Answer
Melaka 2011: Paper1_Paper2_Paper3_Answer
Sarawak 2011: Paper1_Paper2_Paper3_Answer
Pahang 2011Paper1_Paper2_Paper3_Answer 
Perlis 2011Paper1_Paper2_Paper3_Answer 
Kelantan 2011Paper1_Paper2_Paper3_Answer 
Penang 2011Paper1_Paper2_Paper3_Answer 

2011-10-02

Nalanda Buddhist Society: 1 October 2011 - SPM Examination Workshop - Chemis...

Nalanda Buddhist Society: 1 October 2011 - SPM Examination Workshop - Chemis...:  SPM Chemistry Examination Workshop conducted by Ms Khor Swee Moi.  Student participants were fully captivated by the insightful sharing of the speaker.



2011-09-03

My Periodic Table of Elements


Periodic Table of Elements is essential for students who studying chemistry. It’s just like a map for a traveller.   However, students have their own presentation for their own copy of Periodic Table of Elements.




My Atomic Structure

After studying proton number, nucleon number, electron arrangment in the classroom in Chapter 2, Form 4 students are asked to construct models to show the  atomic structure for different elements.