Sunday, August 28, 2011

Checklist for scoring A+ in SPM Chemistry

You should start revising each and every chapter in the syllabus now.
How? Follow these tips:
1.Master basic but important concepts
2.Memorize important facts and processes
3.Practise past-year SPM papers
4.Practise all trial papers

READ-UNDERSTAND-MEMORISE all topics is the only way to guarantee a A+ in SPM Chemistry
Wow .. that a lot of work. How about make it easier for you by focusing on what you need to master to score A+.
File attach is a checklist that will help you in your revision.

Download here (link updated 9/9/2012)

Wednesday, August 24, 2011

2008 SPM Chemistry Paper 3 Mark Scheme

Hopefully by now you are familiar with the Paper 3 format.

Next thing that you need to know in order to score in SPM Chemistry Paper 3 is the answering technique.

Every element and aspect tested in paper 3 must be answer according to spesific format such as number of decimal place, way to write hypothesis, inference, etc.

The file attach is the guildline for answering paper 3.

Download here. (link updated 12/9/2012)

Saturday, August 20, 2011

SPM Chemistry Paper 3 format

Students should know the format of any paper before sitting for the SPM examination.

Marks awarded  for each answer in SPM Chemistry Paper 3 is as follow:

Excellent : The best response
Satisfactory : An average response
Weak : An inaccurate response
No response or wrong response

Elements and aspects that are access in SPM Chemistry Paper 3 is fix and related to Science Process Skills - Science process skills enable students to formulate their questions and find out the answers systematically.

Download the format of Paper 3 here (link updated 9/9/2012)

Tuesday, August 16, 2011

SPM 2010 - Rate of reaction

Three experiments, I, II and III are carried out to investigate the factors affecting the rate of reaction. Table below shows the reactants and the conditions of reaction involved.

Diagram below shows the results of experiments I, II and III.

Based on the graph,
(i)   compare the rate of reaction between experiment I and experiment II.
       Explain your answer using the Collision Theory.                                                                                    [5]
(ii)  suggest one way to obtain curve III without changing the zinc, acid or temperature in experiment II.
       Explain your answer using the Collision Theory.                                                                                    [5]


Wednesday, August 10, 2011

Salt - Qualitative analysis of salt

Classical qualitative inorganic analysis is a method of analytical chemistry which seeks to find elemental composition of inorganic compounds. It is mainly focused on detecting ions in an aqueous solution, so that materials in other forms may need to be brought into this state before using standard methods.

In the qualitative analysis procedure, the chemical properties of an unknown substance are determined by systematically reacting the unknown with a number of different reagents to test for reactions characteristic of certain ions, which may cause color change, solid forming and other visible changes.

Monday, August 1, 2011

Carbon compounds short note posted

Students always think that this topic is difficult. They worry that they can not memorise the chemical properties of alkane, alkene, alcohol and carboxylic acid.

In fact, chemical properties of carbon compound only contribute fewer mark. The most important part of this topic is the basic knowledge of carbon compounds.