Diagnostik kognitif 1_XI

Quiz
•
Chemistry
•
2nd Grade
•
Hard
ANIK YUNI HARTINI
Used 4+ times
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16 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kegiatan berikut ini yang melibatkan perubahan kimia adalah .........
proses mendidihnya air
proses penebangan kayu
proses pembusukan sayur
proses pembuatan kursi
proses pemcairan es batu
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui persamaan reaksi:
2 Al(s) + 6 HCl(aq) --> 2 AlCl3(aq) + 3 H2(g)
Dari persamaan reaksi di atas, yang merupakan reaktan adalah ....
HCl dan AlCl3
Al dan HCl
Al dan H2
AlCl3 dan H2
Al dan AlCl3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berikut ini yang bukan merupakan ciri - ciri terjadinya reaksi kimia adalah .....
menghasilkan warna
Menghasilkan bau
Menghasilkan gas
Perubahan suhu
Menghasilkan endapan
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jumlah atom oksigen dalam 2 molekul kapur Ca(OH)2 adalah...
1
2
3
4
5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada reaksi pembuatan gas amonia, persamaan reaksinya adalah:
N2(g) + 3 H2(g) --> 2 NH3(g)
Pernyataan yang benar tentang persamaan reaksi di atas adalah ....
angka 3 pada gas hidrogen dinamakan indeks reaksi
gas nitrogen dan gas hidrogen disebut zat hasil reaksi
gas amonia disebut zat pereaksi
2 molekul gas amonia adalah zat hasil reaksi
ketiga fase dalam reaksi di atas sama, yaitu fase cair
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dalam satu molekul barium hidroksida Ba(OH)2 terdapat.....
1 atom Ba, 2 atom O dan 1 atom H
2 atom Ba, 2 atom O dan 1 atom H
3 atom Ba, 2 atom O dan 2 atom H
1 atom Ba, 2 atom O dan 2 atom H
2 atom Ba, 1 atom O dan 1 atom H
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Harga a, b, c, d agar reaksi di bawah setara adalah…
a Na (s) + b HCl (aq) → NaCl (aq) + d H2 (g)
2-1-2-2
1-2-2-2
2-2-2-1
1-2-2-1
2-2-1-2
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