BAB 7 KADAR TINDAK BALAS KIMIA

Quiz
•
Chemistry
•
11th - 12th Grade
•
Hard
MPDCA Sekolah Menengah
Used 35+ times
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Antara perubahan yang berikut, manakah boleh digunakan untuk menentukan kadar tindak balas?
Which of the following changes can be used to determine the rate of reaction?
pH dan saiz
pH and size
pH dan warna
pH and colour
Tekanan dan saiz
Pressure and size
Kepekatan dan warna
Concentration and colour
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Antara kadar tindak balas yang berikut, manakah dipadankan dengan betul?
Which of the rate of reaction is matched correctly?
A
B
C
D
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Persamaan kimia berikut menunjukkan tindak balas antara marmar berlebihan dengan asid nitrik cair untuk menghasilkan gas karbon dioksida.
The following chemical equation shows the reaction between excess marble and dilutes nitric acid to produce carbon dioxide gas.
CaCO3(p) + 2HNO3 (ak) → Ca(NO3)2(ak) + CO2 (g) + H2O (ce)
Antara graf yang berikut, manakah tidak menunjukkan lakaran tindak balas itu?
Which of the following graphs does not show the correct plot for the reaction?
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Persamaan kimia yang berikut menunjukkan tindak balas antara natrium karbonat dengan asid hidroklorik.
The following chemical equation shows the reaction between sodium carbonate and hydrochloric acid.
Na2CO3 (p) + 2HCl (ak) → 2NaCl(ak) + CO2(g) + H2O(ce)
Antara perubahan yang berikut, manakah merupakan cara yang paling betul untuk menentukan kadar tindak balas bagi tindak balas di atas?
Which of the following changes is the most appropriate manner to determine the rate of reaction of the reaction?
Pengurangan kepekatan asid hidroklorik per unit masa
The decrease in the concentration of hydrochloric acid per unit time.
Perubahan suhu per unit masa.
The change of the temperature per unit time
Peningkatan air per unit masa.
The increase of water per unit time
Peningkatan isi padu karbon dioksida.
The increase in the volume of carbon dioxide.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Apabila asid sulfurik berlebihan digunakan untuk bertindak balas dengan 5 g ketulan zink, zink yang tertinggal selepas 1.5 minit ialah 1.25 g. Purata kadar tindak balas ialah
[Jisim atom relatif = Zn, 65]
When excess sulphuric acid is used to react with 5 g of granulated zinc, the residue of zinc after 1.5 minutes is 1.25 g. The average rate of reaction is
[Relative atomic mass = Zn : 65]
0.0006 mol s–1
0.004 mol s–1
0.06 mol s–1
0.4 mol s–1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pembakaran karbon dengan oksigen berlebihan akan menghasilkan karbon dioksida. 40 cm3 gas dihasilkan selepas tindak balas lengkap dalam masa 2 minit. Apakah purata kadar tindak balas itu?
The combustion of carbon in excess oxygen produces carbon dioxide. 40 cm3 of gas is produced after the reaction is completed in 2 minutes. What is the average rate of the reaction?
0.20 cm3 s-1
0.33 cm3 s-1
0.66 cm3 s-1
0.72 cm3 s-1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kadar tindak balas awal bagi 1 g ketulan kecil marmar adalah lebih tinggi daripada 1 g ketulan besar marmar apabila bertindak balas dengan 30 cm3 asid hidroklorik 0.1 mol dm–3. Ini adalah kerana
The initial rate of reaction for 1 g of small marble chip is higher than 1 g of large marble chip when reacting with 30 cm3 of 0.1 mol dm–3 hydrochloric acid. This is because
ketulan besar marmar adalah lebih keras daripada ketulan kecil marmar.
the large marble chip is tougher than the small marble chip.
jumlah luas permukaan bagi ketulan besar marmar adalah lebih besar daripada ketulan kecil marmar.
the total surface area of large marble chips is larger than small marble chips.
jumlah luas permukaan bagi ketulan kecil marmar adalah lebih besar daripada ketulan besar marmar.
the total surface area of a small marble chip is larger than a large marble chip.
ketulan besar marmar terlalu berat.
the large marble chip is too heavy.
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