Materi dan Dampaknya
Quiz
•
Chemistry
•
6th - 8th Grade
•
Practice Problem
•
Easy
juita sitorus
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15 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Satu molekul trimetanolamin N(CH2OH)3 mengandung ….
5
6
16
12
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Berikut ini yang merupakan molekul unsur adalah ....
CH3COOH
NH4+
S8
KOH
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Pernyataan berikut yang tidak benar tentang ion SO42- adalah ….
Ion SO42- termasuk anion
didalam ion SO42- terdapat 1 atom S
Ion SO42- menangkap 2 elektron
Ion SO42- adalah molekul unsur
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Unsur Cr mempunyai nomor atom 24 dan nomor massa 52, sehingga ion Cr3+ mempunyai ….
27 elektron
24 elektron
28 neutron
21 proton
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Zat yang dapat menurunkan tegangan permukaan pada sabun disebut ….
alkil benzena sulfonat
basa
hidrofil
surfaktan
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Atom merupakan bola bermuatan positif dan di tempat-tempat tertentu terdapat elektron-elektron yang bermuatan negatif, seperti roti kismis. Pernyataan tersebut dikemukakan oleh ….
Rutherford
Bohr
Thomson
Dalton
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Gas ini lebih banyak dibandingkan oksigen, terdapat di dalam pupuk karena dapat menyuburkan tanah, dan berperan dalam pembentukan asam amino dalam tubuh. Gas tersebut adalah ....
Oksigen
Nitrogen
Karbon dioksida
Argon
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