Materi dan Dampaknya

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Education
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Professional Development
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Hard
juita sitorus
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15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Satu molekul trimetanolamin N(CH2OH)3 mengandung ….
5
6
12
16
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 ….
didalam ion SO42- terdapat 1 atom O
Ion SO42- menangkap 2 atom
Ion SO42- termasuk anion
Ion SO42- adalah molekul unsur
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Unsur Cr mempunyai nomor atom 24 dan nomor massa 52, sehingga ion Cr3+ mempunyai ….
24 elektron
28 neutron
21 proton
27 elektron
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Zat yang dapat menurunkan tegangan permukaan pada sabun disebut ….
surfaktan
alkil benzena sulfonat
basa
hidrofil
6.
MULTIPLE CHOICE QUESTION
1 min • 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 ….
Bohr
Dalton
Rutherford
Thomson
7.
MULTIPLE CHOICE QUESTION
1 min • 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
Karbon dioksida
Nitrogen
Argon
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