Sunday, November 28, 2010
Friday, November 26, 2010
Monday, November 22, 2010
Some hot topics again!!!
Here is some hot topic!!!!
Just take as a guide line to study and revision chemistry!
Take from: http://spmchem.blogspot.com/
Friday, November 19, 2010
Thursday, November 18, 2010
Structure: Construct ECS based on potential difference
- Zn is higher position in ECS.
- Zn is more electro positive.
- Zn is easier to release the electron become cation.
- Electron will move from negative (-)terminal to POSITIVE (+) terminal
- The distance between two metals in ECS incerease, the potential difference increase.
- Zn is more electro positive.
- Zn is easier to release the electron become cation.
- Electron will move from negative (-)terminal to POSITIVE (+) terminal
- The distance between two metals in ECS incerease, the potential difference increase.
Paper 3: Rusting of Iron!!!
- Problem statement: How does the types of metals will affect the rusting of iron?
- Hypothesis: The more electropositive metal will prevent the rusting of iron, while the less electropositive metal will rusting the iron.
- Memorise the material (types of metals and solution) and apparatus (test tube, test tube holder).
- The step of experiment: Clean --> Coil --> Pour --> Few days --> Record observation.
Paper 3: Rate of Reaction - Catalyst - SUPER HOT TOPIC!
- Remember, the manganese (IV) oxide is catalyst!
- use GLOWING wooden splinter
- do the experiment separately
- measure the material before the experiment
- must state unit / volume / mass / concentration
- use GLOWING wooden splinter
- do the experiment separately
- measure the material before the experiment
- must state unit / volume / mass / concentration
Wednesday, November 17, 2010
Hot Hot Hot Topics SPM Chemistry 2010!!!
Paper 2:
1. *Structure of atom
2. *Haber, Contact, Soap Vs Detergent
3. *Carbon Compound: Dehyration, estrification, polymerisation,
empirical formulae, alkane vs alkene
4. *REDOX: U-tube, transfer of electron, displacement, memorise
the oxidising agent, reduxing agent, half equation, observation
and result
5. **Rusting of iron: Experiment, observation, result, explain: More
electropositive prevent rusting of iron, less electropositive
rusting the iron
6. Electrolysis:, electroplating, type of electrode
7. *Peridic table: explain the position, G17 with Fe, G1 with oxygen
8. **Rate of reaction
9. **Thermochemistry: draw / explain energy profile diagram,
10. ***Ionic vs covalent compound - Essay
11. Prepare the standard solution
12. Preparation of soluble / insoluble salt:carbonate / sulphate salt
13. *Experiment Potential difference of two metal in ECS
Paper 3:
1. ***Heat of combustion
2. ***Rate of reaction: Catalyst / Temperature
3. **Rusting of iron
4. Type of electrode
5. Electricity condcutivity of ionic vs covalent compound
6. Potential difference in ECS
1. *Structure of atom
2. *Haber, Contact, Soap Vs Detergent
3. *Carbon Compound: Dehyration, estrification, polymerisation,
empirical formulae, alkane vs alkene
4. *REDOX: U-tube, transfer of electron, displacement, memorise
the oxidising agent, reduxing agent, half equation, observation
and result
5. **Rusting of iron: Experiment, observation, result, explain: More
electropositive prevent rusting of iron, less electropositive
rusting the iron
6. Electrolysis:, electroplating, type of electrode
7. *Peridic table: explain the position, G17 with Fe, G1 with oxygen
8. **Rate of reaction
9. **Thermochemistry: draw / explain energy profile diagram,
10. ***Ionic vs covalent compound - Essay
11. Prepare the standard solution
12. Preparation of soluble / insoluble salt:carbonate / sulphate salt
13. *Experiment Potential difference of two metal in ECS
Paper 3:
1. ***Heat of combustion
2. ***Rate of reaction: Catalyst / Temperature
3. **Rusting of iron
4. Type of electrode
5. Electricity condcutivity of ionic vs covalent compound
6. Potential difference in ECS
Chem SPM 2010: Rusting of Iron
- Metal place HIGHER in ECS is more electropostive
- When the more electropositive metal in contact with iron
- When the more electropositive metal in contact with iron
nail (Ferum, Fe), the metal will PREVENT the rusting of
iron.
- Examples: K, Na, Ca, Mg, Al, Zn, .....
* Metal placer LOWER in ECS is less electropositive
* When the less electropositive metal in contact with iron nail
- Examples: K, Na, Ca, Mg, Al, Zn, .....
* Metal placer LOWER in ECS is less electropositive
* When the less electropositive metal in contact with iron nail
(Ferum, Fe), the metal will cause the RUSTING of iron.
* Examples: Cu, Ag, Au
* Examples: Cu, Ag, Au
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