Kimia
Quiz
•
Science
•
9th - 12th Grade
•
Practice Problem
•
Hard
samuel aprianus
Used 1+ times
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8 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 15 pts
Sejumlah logam besi dipijarkan dengan 3,2 gram belerang menghasilkan 8,8 gram senyawa besi(II) sulfida. Berapa gram logam besi yang telah bereaksi?
5,6 gram
8,8 gram
3,2 gram
6,4 gram
Answer explanation
2.
MULTIPLE CHOICE QUESTION
3 mins • 15 pts
Jika di dalam senyawa FeS perbandingan massa Fe : S = 7 : 4, maka untuk menghasilkan 4,4 gram senyawa FeS diperlukan Fe dan S berturut-turut sebanyak!
Fe = 1,6 gram dan S = 2,8 gram
Fe = 4,4 gram dan S = 1,6 gram
Fe = 2,8 gram dan S = 4,4 gram
Fe = 2,8 gram dan S = 1,6 gram
Answer explanation
3.
MULTIPLE CHOICE QUESTION
3 mins • 15 pts
Unsur X mempunyai konfigurasi elektron 2, 8, 8, 2. sedangkan unsur Y mempunyai konfigurasi elektron 2, 8, 18, 7. Jika kedua unsur membentuk senyawa, maka rumusnya adalah . . .
XY2
X2Y
X2Y3
X2Y5
Answer explanation
4.
MULTIPLE CHOICE QUESTION
3 mins • 15 pts
23 proton, 12 elektron, 11 neutron
11 proton, 12 elektron, 23 neutron
11 proton, 11 elektron, 12 neutron
11 proton, 12 elektron, 11 neutron
Answer explanation
5.
MULTIPLE CHOICE QUESTION
3 mins • 10 pts
Diketahui nomor atom unsur:
A = 3; B = 4; C = 11; D = 12; E= 9; F = 17
Ikatan paling ionic dapat terbentuk antara ….
A dengan F
A dengan E
C dengan E
B dengan C
Answer explanation
6.
MULTIPLE CHOICE QUESTION
3 mins • 10 pts
Unsur X dan Y membentuk senyawa dengan rumus kimia XY3. Kemungkinan nomor atom X dan Y adalah ….
3 dan 5
3 dan 9
5 dan 7
5 dan 9
Answer explanation
7.
MULTIPLE CHOICE QUESTION
3 mins • 10 pts
Di antara molekul-molekul dibawah ini, yang mempunyai ikatan kovalen rangkap dua adalah . . .
N2 (nomor atom N = 7)
O2 (nomor atom O = 8)
H2 (nomor atom H = 1)
NH3
Answer explanation
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