KUIZ UJI KEFAHAMAN 1
Quiz
•
Chemistry
•
4th Grade
•
Practice Problem
•
Hard
NORIZAN Moe
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15 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Sebatian manakah yang terbentuk melalui pemindahan elektron?
Oksigen,O2
Karbon dioksida, CO2
Natrium oksida,Na2O
2.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Magnesium klorida adalah sebatian ion. Bahan manakah yang boleh melarutkan magnesium klorida?
ETER
AIR
HEKSANA
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Siapakah yang menjumpai neutron?
A Neils Bohr
A J. J. Thompson
A James Chadwick
A Ernest Rutherford
4.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Seorang pesakit didiagnosiskan mempunyai kanser isotop manakah yang digunakan untuk merawat pesakit itu?
Karbon-14
Natrium-24
Fosforus-32
Kobalt- 60
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Mengapakah karbon-12 telah dipilih sebagai rujukan piawai untuk jisim atom relatif dan jisim molekul relatifl
Carbon mempunyai tiga isotop
Karbon merupakan unsur bukan logam
Karbon adalah pepejal dan lebih senang dikendalikan
Karbon terletak dalam Kumpulan 14 dalam Jadual Berkala Unsur
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Formula molekul bagi kalsium nitrat dan kalium fosfat adalah Ca(NO3)2 dan K3PO4 masing-masing. Apakah formula molekul bagi kalsium fosfaf?
CaPO4
Ca2PO4
Ca2(PO4)3
Ca3(PO4)2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dua mol natrium karbonat bertindak balas dengan satu mol kalsium klorida
Hasil tindak balas ialah mendakan kalsium karbonat dan larutan natrium klorida
Bahan tindak balas ialah pepejal natrium karbonat dan larutan kalsium klorida
Dua mol kalsium karbonat dan satu mol natrium klorida terbentuk
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