Kadar Tindak Balas
Quiz
•
Science
•
8th - 9th Grade
•
Hard
EVALEEN Moe
Used 3+ times
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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2. Apakah unit bagi kadar tindak balas?
kg
ms-2
Jmol-1
cm3s-1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3. Apabila magnesium bertindak balas dengan asid hidroklorik, gas hydrogen dibebaskan. 45 cm3 gas hidrogen dibebaskan dalam masa seminit. Berapakah kadar tindak balas purata?
0.45 cm3 s-
0.50 cm3 s-1
0.75 cm3 s-1
0.80 cm3 s-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4. Rajah 4 menunjukkan graf isi padu gas melawan masa. Titik manakah yang menunjukkan kadar tindak balas yang paling tinggi?
S
T
U
V
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Maklumat berikut menunjukkan suatu persamaan tindak balas.
Zink + Asid hidroklorik -----> Zink klorida + Hidrogen
Antara kaedah berikut, yang manakah paling sesuai untuk menentukan kadar tindak balas di makmal sekolah?
Menentukan perubahan suhu larutan dengan masa
Menentukan perubahan kepekatan larutan zink klorida dengan masa
Menentukan isi padu gas hydrogen yang dibebaskan dengan masa
Menentukan perubahan kepekatan asid hidroklorik dengan masa
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mengapakah pertambahan kepekatan larutan natrium tiosulfat akan meningkatkan kadar pembentukan mendakan kuning?
Pertambahan tenaga kinetik
Mengubah kadar sesuatu tindak balas kimia
Pertambahan bilangan zarah bahan tindak balas
Jumlah luas permukaan (JLP) yang terdedah yang lebih besar kepada tindak balas
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. Antara proses berikut, yang manakah merupakan tindak balas yang cepat?
Pembakaran arang
Pengaratan besi
Fotosintesis
Penapaian beras
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