Kimia Tingkatan 4- Bab 3: Formula Kimia dan Sebatian
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Medium
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15 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Hitung jisim formula relatif bagi natrium klorida, NaCl.
[Jisim atom relatif: Na=23, Cl=35.5]
23
35.5
58.5
12.5
2.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
Formula empirik ialah formula kimia yang menunjukkan nisbah nombor bulat _______________ bagi bilangan atom setiap unsur dalam suatu sebatian.
3.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
Formula molekul ialah formula kimia yang menunjukkan bilangan ______________ atom bagi setiap unsur yang terdapat dalam satu molekul sebatian.
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Mengapakah karbon-12 digunakan sebagai rujukan piawai untuk jisim atom relatif?
Karbon-12 lebih stabil
Karbon-12 boleh bergabung dengan banyak unsur
Karbon-12 mempunyai tiga isotop
Karbon-12 lebih mudah dikendalikan kerana wujud dalam keadaan pepejal pada suhu bilik
5.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Rajah menunjukkan struktur molekul bagi aspirin.
Tuliskan formula molekul bagi aspirin.
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Persamaan berikut mewakili satu tindak balas kimia.
Mg + 2HCl → MgCl2 + H2
Apakah hasil-hasil tindak balas bagi persamaan ini?
magnesium
magnesium dan asid hidroklorik
magnesium klorida dan gas hidrogen
magnesium dan gas hidrogen
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Jisim satu atom X adalah empat kali lebih berat daripada satu atom besi.
Berapakah jisim atom relatif X?
[Jisim atom relatif: Fe = 56]
8
14
28
224
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