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WorksheetsPBD 1 CHEMISTRY
Total questions: 30
Worksheet time: 30mins
Antara berikut , apakah yang dilakukan selepas membuat satu pemerhatian?
Which of the following is done after making an observation?
Membuat inferens
Making inference
Merancang eksperimen
Planning experiment
Membuat hipotesis
Making hypothesis
Melukis gambarah susunan radas
Draw the set up apparatus
Antara yang berikut bahan kimia manakah tidak terlibat dalam bidang pertanian?
Which of the following chemicals does not involve in the agricultural field?
Baja
Fertiliser
Racun herba
Herbicide
Racun serangga
Pesticide
Analgesik
Analgesic
Mengapakah logam alkali mesti disimpan di dalam minyak parafin?
Why must alkali metal be kept in paraffin oil?
Untuk mengelakkan tindak balas dengan udara dan air
To prevent the reaction with air and water
Untuk menyediakan medium yang sejuk
To provide cool medium
Untuk mengelakkan terdedah kepada matahari
To avoid exposure to sunlight
untuk mengelakkan pengaratan logam
to prevent corrosion of metal
Antara pernyataan berikut, manakah yang benar mengenai fasa cecair?
Which of the following statement is true about liquid phase?
Mempunyai bentuk tetap dan isipadu tetap
Has definite shape and definite volume
Zarah-zarah adalah amat berjauhan daripada satu zarah ke zarah yang lain
The particles are very far apart from each other
Mempunyai bentuk tidak tetap dan isipadu tidak tetap
Has indefinite shape and indefinite volume
Mempunyai bentuk tidak tetap tetapi isipadu yang tetap
Has indefinite shape but definite volume
Rajah dibawah menunjukkan perubahan keadaan jirim apabila haba dibekalkan
Diagram below shows the change of state of matter when heat is supplied
Pernyataan manakah yang benar mengenai perubahan susunan zarah-zarah jirim di atas?
Which of the following statements is true about the change in the arrangement of the above particles?
Saiz zarah berkurangan
The particle size decreases
Tenaga haba diserap
The heat energy is absorbed
Jarak di antara zarah menjadi dekat
The distance between particles becomes close
Daya tarikan antara zarah meningkat
The attraction between particles increases
Antara yang berikut, proses yang manakah melibatkan penyerapan haba?
Which of the following process involves heat absorption?
Gas --> Cecair
Gas --> Liquid
Cecair --> Pepejal
Liquid --> Solid
Cecair --> Gas
Liquid --> Gas
Gas --> Pepejal
Gas --> Solid
The diagram shows a graph of the heating of matter.
Rajah menunjukkan graf pemanasan jirim.
At which stage does matter exist only in solid and liquid state?
Pada peringkat manakah jirim itu hanya wujud dalam bentuk pepejal dan cecair?
OP
PQ
QR
ST
Who discovered the electron in and won a Nobel Prize for it?
Siapakah yang menemui elektron yang memenangi Hadiah Noble untuk itu?
John Dalton
J.J. Thompson
Ernest Rutherford
Niels Bohr
The diagrams show the structures of atoms M and N
Rajah menunjukkan struktur atom M dan N
What is the difference between atoms M and N?
Apakah perbezaan antara atom M dan N?
The proton number
Nombor proton
The number of neutron
Bilangan neutron
The number of electron
Bilangan electron
The number of proton and electron
Bilangan proton dan elektron
The table shows the number of proton, the number of neutron and the number of electron of four elements.
Jadual menunjukkan bilangan proton, bilangan neutron dan bilangan elektron bagi empat jenis unsur.
Which of the elements P, Q, R and S has the nucleon number 12?
Antara unsur P, Q, R dan S, yang manakah mempunyai nombor nukleon 12 ?
P
Q
R
S
Based on the following table, which elements are isotopes?
Berdasarkan jadual berikut, yang manakah unsur-unsur tersebut adalah isotop?
K and L
K dan L
K and M
K dan M
M and N
M dan N
L and M
L dan M
Cobalt-60 is an isotope of cobalt. What is the use of cobalt-60?
Kobalt-60 adalah isotop bagi kobalt. Apakah kegunaan kobalt-60?
Estimate the age of fossils and artifacts
Menganggar umur fosil dan artifak
Detect the leakage of undergroud water pipe
Mengesan kebocoran paip air bawah tanah
Regulate the heart beats of patients with heart problems
Memulihkan degupan jantungpesakit jantung
Destroy bacteria in food without changing the quality of food
Memusnahkan bakteria dalam makanan tanpa mengubah kualiti makanan
Kira jisim 0.1 mol kalsium karbonat (CaCO3)
(JAR, Ca = 40, C = 12 dan O = 16).
Calculate the mass of 0.1 mol calcium carbonat (CaCO3)
(JAR, Ca = 40, C = 12 dan O = 16).
5 gram
10 gram
15 gram
20 gram
Apakah bilangan mol bagi 250 g kalsium karbonat?
(JAR, Ca = 40 C= 12, O=16)
What is the mol number of 250 g calcium carbonate ?
(JAR, Ca = 40 C= 12, O=16)
1.5 mol
1 mol
2 mol
2.5 mol
Berapakah bilangan atom yang terdapat dalam 1.204x1024 molekul NaOH?
How many atoms are there in 1.204x1024 molecules of NaOH?
1.204x1024
3.612x1024
2.408x1024
1.204x1025
Tentukan bilangan mol bagi gas oksigen dengan isipadu 1500 cm3 pada suhu bilik
Determine the number of mol for oxygen gas with volume 1500 cm3 at room temeprature
0.0625 mol
0.625 mol
0.0669 mol
62.5 mol
Kira jisim 0.5 mol natrium klorida
Calculate the mass of sodim chloride
(Na = 23 g/mol, Cl = 35.5 g/mol)
35.5 g
29.3 g
20.5 g
14.5 g
Berapakah bilangan atom dalam 8.5 g ammonia gas, NH3?
[Jisim molar NH3 = 17 ; Pemalar Avogadro = 6.02 x 1023 mol-1]
What is the number of atoms in 8.5 g of ammonia gas, NH3?
[Molar mass of NH3 = 17 ; Avogadro constant = 6.02 x 1023 mol-1]
3.01 x 1023
1.204 x 1024
9.03 x 1023
5.117 x 1024
Formula bagi kalium heksasianoferat(II) diberi sebagai KyFe(CN)6. Jisim formula relatif sebatian ini ialah 368. Apakah nilai y?
[Jisim atom relatif : C = 12 ; N = 14, K = 39, Fe = 56]
The formula for potassium hexacyanoferrate(II) is given as KyFe(CN)6. Its relative formula mass is 368. What is the value of y?
[Relative atomic mass : C = 12 ; N = 14, K = 39, Fe = 56]
2
3
4
5
Manakah antara baja-baja berikut mengandungi bilangan atom nitrogen yang paling tinggi?
Which of the following fertilizers has the highest number of nitrogen atoms?
0.5 mol (NH4)3PO4
0.5 mol (NH4)2SO4
1.0 mol NH4Cl
1.0 mol NH4NO3
4.80 g unsur P bertindak balas lengkap dengan 3.20 g unsur Q.
Apakah formula empirik bagi sebatian yang terbentuk?
[Jisim atom relatif P=24; Q=16]
4.80 g of element P reacts completely with 3.20 g of element Q.
What is the empirical formula of the compound produced?
[Relative atomic mass P=24; Q=16]
PQ
P2Q
PQ2
P2Q2
Sebatian manakah yang mempunyai formula empirik CH20?
Which compound has the empirical formula of CH20?
HCOOH
CH3COOH
CH3COOCH3
HCOOC2H5
0.40 g logam X bertindak balas dengan f/uorin untuk menghasilkan 0. 78 g X fluorida.Apakah formula empirik bagi X fluorida itu?[Jisim atom reletit: F = 19; X = 40]
0.40 g X metal reacts with fluorine to produce 0. 78 g of X fluoride. What is the empirical formula of the X fluoride? [Relative atomic mass: F = 19; X = 40]
XF
XF2
X2F
XF4
Formula bagi ion sulfat adalah SO42− dan ion nitrat adalah NO3−. Jlka formula garam sulfat bagi M ialah MS04,
apakah formula garam nitrat bagi M?
The formula for a sulphate ion is SO42− and for a nitrate is NO3−. If the formula of the sulphate salts of M is MS04, what is the formula of the nitrate salt of M?
MNO3
M2NO3
M(NO3)2
M(NO3)3
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
A student needs 65.0 g of copper(II) chloride, CuCl2, for an experiment. How many atoms of chlorine are there in this sample?
Seorang pelajar memerlukan 65.0 g kuprum(II) klorida, CuCl2, dalam satu eksperimen yang dijalankan. Berapakah atom klorin di dalam sampel ini?
[Relative atomic mass/ Jisim atom relatif Cu, 64, Cl, 35.5; NA = 6.02 x 10 ^23 mol-1]
5.79x 10^23 atoms
8.69 x 10^23 atoms
2.89 x 10^23 atoms
3.913x 10^25 atoms
Mylanta, a common antacid, contains magnesium hydroxide, Mg(OH)2. How many moles of magnesium hydroxide are in 75.0 g of magnesium hydroxide?
Mylanta merupakan satu jenis antasid yang mengandungi Mg(OH)2. Berapakah bilangan mol magnesium hydroksida bagi 75.0 g sampel ini?
[Relative atomic mass/ Jiism atom relatif: H, 1 ;Mg, 24 ; O, 16]
1.32 moles
1.79 moles
1.29 moles
1.83 moles
Which of the following has the most number of atoms?
Antara berikut, yang manakah mengandungi bilangan atom yang paling banyak?
[NA = 6.02 x 10^23 mol-1]
1.5 moles of oxygen, O2
1.5 mol oksigen, O2
1.0 mol of ammonia, NH3
1.0 mol ammonia, NH3
0.5 moles of sulpur dioxide, SO2
0.5 mol sulfur dioksida, SO2
1.2 moles of carbon dioxide, CO2
1.2 mol karbon dioksida, CO2
What is the mass of carbon dioxide that contains the same volume as in 2 moles of sulphur dioxide?
Berapakah jisim karbon dioksida yang mengandungi isi padu yang sama banyak dengan 2 mol sulfur dioksida?
[ Relative atomic mass/ Jisim atom relatif: C,12; O, 16; S, 32]
44
64
88
128
1.6 g of gas X occupies 560 cm3 at standard temperature and pressure ( s.t.p). What is the relative molecular mass of X?
1.6 g gas X menempati 560 cm3 pada suhu dan tekanan piawai ( stp). Berapakah jisim molekul telatif bagi X?
[molar volume of gas at s.t.p/ Isi padu molar gas pada s.t.p = 22.4 dm3 mol-1]
40
16
25
64
