
Quiz Kimia1
Quiz
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Chemistry
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Professional Development
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Practice Problem
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Teacher Edulab
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20 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Jika satu orbital atom dapat diisi maksimum 3 elektron, berikut yang merupakan konfigurasi elektron gas mulia adalah…
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Perhatikan konfigurasi elektron untuk lima spesi di atas.
Spesi berikut yang memerlukan energi untuk menerima satu elektron pada fasa gas adalah…
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui .Pasangan senyawa yang mengikuti aturan oktet adalah…
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Hidrazin (N2H4) adalah cairan yang rapat massanya sama dengan rapat massa air. Pembakaran sempurna hidrazin menghasilkan air dan gas nitrogen menurut reaksi berikut.
N2H4 (l) + O2 (g) → N2 (g) + 2H2O (l)
Volume air yang dihasilkan pada pembakaran 64 mL cairan hidrazin adalah…
32 mL
36 mL
64 mL
72 mL
144 mL
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui senyawa kobal klorida merupakan senyawa yang memiliki warna biru, sedangkan hidratnya, CoCl2.xH2O berwarna magenta (merah) sehingga sering digunakan untuk indikator keberadaan air. Sebanyak 1,19 gr CoCl2.xH2O dilarutkan dalam air sampai volume 50 mL. Kemudian, ke dalam 25 mL larutan ini dimasukkan larutan AgNO3 berlebih sehingga terbentuk endapan AgCl sebanyak 0,7175 gr. Dengan demikian, nilai x adalah… (Ar Co = 59; Cl = 35,5; H = 1; O = 16; Ag = 108; N = 14)
2
3
4
6
19
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Dalam proses glikolisis, 1 molekul glukosa (C6H12O6) dipecah menjadi 2 molekul asam laktat (C3H6O3). Jika nilai perubahan entalpi dari metabolisme glukosa adalah -2808 kJ/mol dan metabolisme asam laktat adalah -1344 kJ/mol, maka perubahan entalpi standar dari proses glikolisis adalah… kJ/mol.
-120
120
0
1464
-1464
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Reaksi dekomposisi NO2 berikut merupakan reaksi elementer
2NO2 → NO + O2
Jika pada awal reaksi [NO2] = 0,01 M dan laju reaksi 5,4 x 10-4 M/detik, maka pada saat [NO2] terurai 90%, laju reaksi akan menjadi…
5,4 x 10-3 M/detik
5,4 x 10-4 M/detik
4,4 x 10-4 M/detik
5,4 x 10-6 M/detik
4,4 x 10-6 M/detik
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