KUIZ BAB 4 : KADAR TINDAK BALAS
Quiz
•
Science
•
9th - 12th Grade
•
Practice Problem
•
Hard
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Antara yang berikut, yang manakah paling tepat menjelaskan maksud kadar tindak balas?
Kelajuan ketika semua bahan tindak balas digunakan dalam masa yang diberikan
Perubahan dalam kuantiti bahan atau hasil tindak balas per unit masa
Perubahan kepekatan bahan tindak balas per unit masa
Perubahan yang dapat diperhatikan dan diukur dengan mdah
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Proses yang manakah mempunyai kadar tindak balas yang paling tinggi?
Fotosintesis
Respirasi
Pembakaran
Pengaratan
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Antara berikut, yang manakah ialah tindak balas perlahan?
Pengaratan besi
Pembakaran kertas
Pembakaran magnesium dalam udara
Tindak balas antara natrium dan air
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perubahan yang manakah tidak boleh diperhatikan dan diukur semasa tindak balas?
Pertambahan jisim hasil tindak balas
Pengurangan jisim bahan tindak balas
Pertambahan isi padu gas yang terbebas
Pengurangan isi padu gas yang terbebas
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apabila magnesium bertindak balas dengan asid hidroklorik, gas hidrogen dibebaskan. 45 cm3 gas hidrogen dibebaskan dalam masa seminit. Berapakah kadar tindak balas purata?
0.45 cm3 s-1
0.50 cm3 s-1
0.75 cm3 s-1
0.80 cm3 s-1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mengapakah pertambahan kepekatan larutan natrium tiosulfat akan meningkatkan pembentukan mendakan kuning?
Pertambahan tenaga kinetik
Mengubah kadar sesuatu tindak balas kimia
Pertambahan bilangan zarah bahan tindak balas
Jumlah luas permukaan yang terdedah yang lebih besar kepada tindak balas
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Antara set eksperimen berikut, yang manakah menghasilkan kadar tindak balas yang paling tinggi apabila bertindak balas dengan asid sulfurik berlebihan?
5 g ketulan kalsium karbonat pada suhu 300C
5 g ketulan kalsium karbonat pada suhu 500C
5 g serbuk kalsium karbonat pada suhu 300C
5 g serbuk kalsium karbonat pada suhu 300C
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