KIMIA

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Science
•
University
•
Medium
Husnaeni Husnaeni
Used 3+ times
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Diketahuidata potensial reduksi logam:
Cu2+/Cu = + 0,34 V Ni2+/Ni= – 0,28 V
Zn2+/Zn= – 0,76 V Ag+/Ag= + 0,80 V
1. Reaksi yang dapat berlangsung spontan ....
A. Cu(s) + Zn2+(aq)à Zn(s) + Cu2+(aq)
B. Ni2+(aq) + Zn(s)à Ni(s) + Zn2+(aq)
C. 2Ag(s) + Ni2+(aq)à 2Ag+(aq) + Ni(s)
D. Ni2+(aq) + Cu(s)à Ni(s) + Cu2+(aq)
E. Zn2+(aq) + 2Ag(s)à 2Ag+(aq) + Zn(s)
A
B
C
D
E
2.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Jika larutan KNO3 dielektrolisis dengan menggunakan elektrode grafit maka ....
A. terbentuk gas hidrogen di anode
B. terbentuk gas oksigen di katode
C. larutan bersifat asam di anode
D. logam kalium mengendap di katode
E. massa di anode bertambah
A
B
C
D
E
3.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Perhatikan tahapan-tahapan metode ilmiah berikut ini
1) Penelitian
2) Menarik kesimpulan
3) Merumuskan masalah
4) Merumuskan hipotesis
5) Mengolah dan menganalisis data hasil penelitian
6) Menyusun teori atau studi pustaka
Tahapan penelitian berdasarkan metode ilmiah secara runtut ditunjukan oleh…
3-6-4-1-5-2
3-6-4-5-1-2
1-2-3-4-5-6
6-5-4-3-2-1
4-6-1-2-3-5
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Unsur-unsur berikut ini memiliki sifat yang mirip, kecuali ….
H
He
Ne
Ar
Kr
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Unsur yang tidak termasuk alkali tanah adalah ….
Be
Mg
Ba
Ca
S
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Unsur-unsur dalam satu golongan memiliki ….
proton yang sama
elektron valensi yang sama
elektron yang sama
jari-jari atom yang sama
jumlah kulit yang sama
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Setelah melakukan kajian teori, Santa membuat jawaban atau pemikiran sementara dari hal-hal yang dibaca sebelumnya. Pembuatan jawaban sementara merupakan tahapan metode ilmiah berupa…
perumusan hipotesis
perumusan masalah
analisis data
penarikan kesimpulan
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