
Chemistry
Chemistry
8th Grade
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10 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Apakah formula kimia bagi natrium?
Sa
Na
Um
Ir
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Berapakah nombor proton bagi karbon?
4
5
6
7
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Apakah formula kimia bagi air?
CO2
NO3
H2O
Cl2
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Antara berikut yang manakah bukan subatom?
Proton
Elektron
Neutron
Nukleus
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Model atom ini dikemukan oleh
Neils Bohr
John Dalton
James Chadwick
Ernest Rutherford
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Antara yang berikut, unsur yang mana
berada dalam kumpulan 18 dalam jadual
berkala.
Helium and krypton
Hydrogen and oxygen
. Oxygen and krypton
Helium, hydrogen and oxygen
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Badan kapal terbang diperbuat daripada
duralumin. Apakah unsur utama dalam
duralumin?
Besi
Kuprum
Magnesium
Aluminium
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