Apa tunggu-tunggu lagi.... cepat lari.... kalu cam ni bila nak sampai....
Thursday, January 29, 2009
Saturday, January 24, 2009
TEKNIK-TEKNIK MENJAWAB SOALAN STRUKTUR CHEMISTRY 2 SPM
A. Memberi jawapan yang ringkas dan tepat.
• Jangan mengulangi ayat dalam soalan.
• Terus menulis jawapan yang dikehendaki.
Example :
Which of the following element can form base oxide?
Answer :
Wrong = From the following elements, the element that can form a base oxode is sodium / Natrium.
Correct = Sodium / Natrium. (Terus tulis nama unsur itu)
Exercise
1. Molten lead(II) bromide can conduct electricity, explain why?
________________________________________
B. Memberi jawapan mengikut kehendak soalan.
• Jangan memberi jawapan yang tidak berkaitan dengan kehendak soalan.
• Baca soalan dengan teliti dan gariskan/bulatkan maklumat yang penting.
Example :
Write a chemical formula for the product when magnesium react with oxygen
Answer :
Wrong = 2Mg + O2 -----------> 2MgO (equation)
Correct = MgO (the chemical formula for magnesium oxide)
Example :
What can you observe when calcium carbonate added into dilute sulphuric acid.
Answer :
Wrong = Carbon dioxide gas release (the gas name)
Correct = Gas bubble released
Correct = Effervesce happened.
Example :
Write an ionic equation for the reaction between dilute hydrochloric acid and sodium hydroxide solution
Answer :
Wrong = HCl + NaOH --------> NaCl + H2O
Correct = H+ + OH- --------> H2O
Exercise
1. State a chemicals property for the element in group one in Periodic Table of Elements
2. Write the number of charge for the magnesium ion
3. List all the ionic formula for the ions that consist in aqueous copper(II) sulphate.
4. In the electrolysis of aqueous sodium hydroxide, what is the product produce at anode?
________________________________________
C. Menggunakan istilah -istilah yang betul.
• Jangan menggunakan istilah-istilah yang salah.
• Harus menggunakan istilah yang betul.
Example :
Wrong (Correct)
1 The attraction force between molecules low/small/high (Weak/Strong)
2 Sodium has one electron valens (Sodium atom)
3 Argon atom has stable arrangement / complete electron arrangement / 8 stable electron.
(Stable electron arrangement /electron arrangement as noble gas / 8 electron at the outermost shell / the electron at the outermost shell are full)
4 The colour of the solution change from blue to clear. (Colourless / decolourise).
5 Ions in the electrolyte can move. (free / free moving).
6 The rate of reaction fast/slow. (High/low).
7 Copper moleculs. (Atoms)
8 Copper atoms attracted to cathode. (Ions)
TUNGGU SAMBUNGANNYA........
• Jangan mengulangi ayat dalam soalan.
• Terus menulis jawapan yang dikehendaki.
Example :
Which of the following element can form base oxide?
Answer :
Wrong = From the following elements, the element that can form a base oxode is sodium / Natrium.
Correct = Sodium / Natrium. (Terus tulis nama unsur itu)
Exercise
1. Molten lead(II) bromide can conduct electricity, explain why?
________________________________________
B. Memberi jawapan mengikut kehendak soalan.
• Jangan memberi jawapan yang tidak berkaitan dengan kehendak soalan.
• Baca soalan dengan teliti dan gariskan/bulatkan maklumat yang penting.
Example :
Write a chemical formula for the product when magnesium react with oxygen
Answer :
Wrong = 2Mg + O2 -----------> 2MgO (equation)
Correct = MgO (the chemical formula for magnesium oxide)
Example :
What can you observe when calcium carbonate added into dilute sulphuric acid.
Answer :
Wrong = Carbon dioxide gas release (the gas name)
Correct = Gas bubble released
Correct = Effervesce happened.
Example :
Write an ionic equation for the reaction between dilute hydrochloric acid and sodium hydroxide solution
Answer :
Wrong = HCl + NaOH --------> NaCl + H2O
Correct = H+ + OH- --------> H2O
Exercise
1. State a chemicals property for the element in group one in Periodic Table of Elements
2. Write the number of charge for the magnesium ion
3. List all the ionic formula for the ions that consist in aqueous copper(II) sulphate.
4. In the electrolysis of aqueous sodium hydroxide, what is the product produce at anode?
________________________________________
C. Menggunakan istilah -istilah yang betul.
• Jangan menggunakan istilah-istilah yang salah.
• Harus menggunakan istilah yang betul.
Example :
Wrong (Correct)
1 The attraction force between molecules low/small/high (Weak/Strong)
2 Sodium has one electron valens (Sodium atom)
3 Argon atom has stable arrangement / complete electron arrangement / 8 stable electron.
(Stable electron arrangement /electron arrangement as noble gas / 8 electron at the outermost shell / the electron at the outermost shell are full)
4 The colour of the solution change from blue to clear. (Colourless / decolourise).
5 Ions in the electrolyte can move. (free / free moving).
6 The rate of reaction fast/slow. (High/low).
7 Copper moleculs. (Atoms)
8 Copper atoms attracted to cathode. (Ions)
TUNGGU SAMBUNGANNYA........
Saturday, January 10, 2009
Assalamualaikummmm........
Selamat datang ke blog Kimia SPM untuk pelajar ku terutama di SMKAB 2009 ni ..... Moga blog ini bermanafaat untuk kalian... dalam usaha menggarap A1 dan A2 dalam Chemistry.... Doa Cikgu senantiasa bersama you all... cuma pesanan seorang guru kerdil ini.... "USAHA TANGGA KEJAYAAN" Cita-cita tanpa usaha umpama mimpi ngeri menjadi nyata..... Kalau Tak Pecahkan Ruyong Manakan Dapat Sagunya.... kalu tak caya tanya cikgu Celimah.... dia dah biasa buat sagu.... kalu tak faham-faham belajar Chemistry ni boleh jumpa Cikgu bila-bila masa dan kalu malu boleh tinggalkan pesanan dalam kotak pesanan dengan memberikan nama yang betul... nick name tak layan... sorry...
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