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WorksheetsSPM CHEMISTRY CHAPTER 3 Chemical Formula & Equations
Total questions: 18
Worksheet time: 34mins
Which chemical formula is correctly named?
Formula kimia yang manakah dinamakan dengan betul ?
A
B
C
D
Diagram shows the apparatus set-up to determine the empirical formula for an oxide of copper. Gas Z is used to reduce the oxide of copper. What is gas Z?
Rajah menunjukkan susunan radas untuk menentukan formula empirik bagi satu oksida kuprum. Gas Z digunakan untuk menurunkan oksida kuprum itu. Apakah gas Z?
Oxygen / Oksigen
Chlorine / Klorin
Hydrogen / Hidrogen
Carbon dioxide / Karban dioksida
Which compound has the correct chemical formula?
Sebatian manakah mempunyai formula kimia yang betul?
A
B
C
D
What is the empirical formula for the compound?
Apakah formula empirik bagi sebatian itu?
CH2O
C2H2O2
CH2O2
C2H5O2
Which substance has the same number of atoms as 12 g of carbon-12?
Bahan manakah yang mempunyai bilangan atom yang sama dengan 12 g carbon-12?
1 mole of sodium chloride, NaCl
1 mol natrium klorida, NaCl
1 mole of ethanol, C2H5OH
1 mol etanol, C2H5OH
1 mole of chlorine gas, Cl2
1 mol gas klorin, Cl2
1 mole of neon, Ne
1 mol neon, Ne
Which of the following equation represents the reaction between elements X and Y?
Antara persamaan berikut, yang manakah mewakili tindak balas antara unsur X dengan unsur Y?
In the experiment, excess chlorine gas is flown into the combustion tube. A brown solid is produced. What is the mass of the brown solid produced? [Relative atomic mass: Cl = 35.5, Fe = 56]
Dalam eksperimen ini,gas klorin berlebihan dialirkan ke dalam tiub pembakaran. Pepejal perang terbentuk. Apakah jisim pepejal perang yang terbentuk?
6.09 g
6.86 g
9.53 g
12.19 g
The flow of dry hydrogen gas must be continued during the cooling process. What is the reason for this action?
Aliran gas hidrogen kering mesti dialirkan semasa proses penyejukan. Apakah sebab tindakan ini diambil?
To remove the air from the combustion tube
Untuk menyingkirkan udara daripada tiub pembakaran
To avoid the oxidation of lead to lead(II) oxide
Untuk mengelakkan pengoksidaan plumbum kepada plumbum(II) oksida
To ensure the complete conversion of lead to lead(II) oxide
Untuk memastikan pertukaran lengkap plumbum kepada plumbum(II) oksida
To increase the mass of lead formed in the combustion tube
Untuk meningkatkan jisim plumbum yang terbentuk dalam tiub pembakaran
Which of the following statement is correct?
Antara pernyataan berikut, yang manakah betul?
Carbon dioxide and oxygen exist as a gas while water and glucose exist as a liquid
Karbon dioksida dan oksigen wujud sebagai gas sementara air dan glukosa adalah cecair
6 moles of carbon dioxide react with 6 moles of water to form 1 mole of glucose and 6 moles of oxygen molecules
6 mol karbon dioksida bertindak balas dengan 6 mol air membentuk I mol glukosa dan 6 mol molekul oksigen
Carbon dioxide and water are products while glucose and oxygen are reactants
Karbon dioksida dan air ialah hasil tindak balas manakala glukosa dan oksigen ialah bahan tindak balas
6 moles of carbon dioxide react with 6 moles of water to form 1 mole of glucose and 6 moles of oxygen atoms
6 mol karbon dioksida bertindak balas dengan 6 mol air membentuk I mol glukosa dan 6 mol atom oksigen
A sample of carbon dioxide has a mass of 88 g. The relative molecular mass of the gas is 44. Which statements are correct about the sample of carbon dioxide?
Suatu sampel karbon dioksida mempunyai jisim 88 g. Jisim
molekul relatif bagi bagi gas ialah 44. Antara pernyataan berikut, yang manakah benar mengenai sampel karbon dioksida tersebut?
It contains 2 moles of carbon dioxide molecules
Mengandungi 2 mol molekul karbon dioksida
It contains 2 moles of carbon atoms
Mengandungi 2 mol atom karbon
It contains 2 moles of oxygen atoms
Mengandungi 2 mol atom oksigen
It contains 2 x 6 x 1023 carbon dioxide molecules
Mengandungi 2 x 6 x 1023 molekul karbon dioksida
XCO3
X2CO3
X(CO3)2
X2(CO3)3
The excess gas that comes out at the end of the combustion tube are collected and tested with burning wooden splinter. This test is repeated until there is no 'pop' sound produced. What is the reason for this action to be taken?
Lebihan gas yang keluar dari hujung tabung pembakaran dikumpulkan dan diuji dengan menggunakan kayu uji bernyala. Ujian ini dilakukan berulang kali sehingga tiada bunyi 'pop' terhasil. Apakah tujuan tindakan ini diambil?
To ensure all the copper(II) oxide has changed into copper
Untuk memastikan semua kuprum(II) oksida telah bertukar kepada kuprum
To prevent copper from reacting with air to form copper(II) oxide
Untuk mengelakkan kuprum daripada bertindak balas dengan udara bagi inembentuk kuprum(II) oksida
To ensure all air has been removed so that explosion can be prevented
Untuk memastikan semua udara dikelua'rkan supaya letupan dapat dielakkan
To prevent the water from flowing towards the hot porcelain dish and cracks the combustion tube
Untuk mengelakkan air daripada mengalir ke arah piring porselin yang panas dan meretakkan tiub pembakaran
Which pair of quantity will be the same for one mole of carbon dioxide, CO2 and one mole of ammonia, NH3 at room temperature and pressure?
Pasangan kuantiti manakah yang sama bagi satu mol karbon dioksida; CO2 dan satu mol ammonia, NH3 pada suhu dan tekanan bilik?
Mass and volume
Jisim dan isi padu
Mass and number of atoms
Jisim dan- bilanganatom
Volume and number of molecules
Isi padu dan bilangan molekul
Number of molecules and number of atoms
Bilangan molekul dan bilangan atom
3.01 X 1023
6.02 X 1023
1.505 X 1023
4.515 X 1023
Diagram shows the percentage composition of a dye. What is the molecular formula of the dye? [Relative atomic mass: C = 12, H = 1, N = 14, Molar mass of the dye= 237 g mol-1]
Rajah menunjukkan peratus komposisi bagi sesuatu pewarna. Apakah formula molekul bagi pewarna itu?
CHN5
C5H5N
C3H3N15
C15H15N3
Complete combustion of propanol produces carbon dioxide and water. What is the minimum oxygen gas required for complete combustion of 15.0 g of propanol at room condition. [Relative atomic mass: H = 1, C = 12, 0 = 16; Molar volume of gas at room condition = 24 dm3 mol-1]
Pembakaran lengkap propanol menghasilkan karbon dioksida dan air. Berapakah isi padu minimum gas oksigen yang diperlukan untuk pembakaran lengkap 15.0 g propanol pada keadaan bilik.
6.0 dm3
27.0 dm3
29.2 dm3
3 0.0 dm3
What is the volume of nitrogen dioxide gas released when 18.8 g of copper(II) nitrate is heated at room condition? [Relative atomic mass: Cu= 64, 0 = 16, N = 14; Molar volume of gas at room temperature and pressure= 24 dm3 mol-1]
Berapakah isi padu gas nitrogen dioksida yang dibebaskan apabila 18.8 g kuprum(II) nitrat dipanaskan pada keadaan bilik?
1.2 dm3
2.4 dm3
4.8 dm3
9.6 dm3
100% Agree
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