
UJIAN SEKOLAH MAPEl :PRAKARYA KElAS : XII IPA,IPS,BAHASA
Quiz
•
Chemistry
•
12th Grade
•
Practice Problem
•
Hard
Irene Sailana
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47 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
Pada isotop unsur 30Zn65 dan 83Br209 , jumlah proton dan neutron kedua unsur tersebut berturut-turut adalah....
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
Harga keempat bilangan kuantum elektron terakhir dari 16 S adalah ....
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3.
OPEN ENDED QUESTION
3 mins • 1 pt
Diketahui unsur-unsur P, Q, R, S, dan T dengan nomor atom berturut-turut adalah 19, 11, 13, 15 dan 17. Ikatan ion dapat terjadi antara atom-atom unsur ....
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4.
OPEN ENDED QUESTION
3 mins • 1 pt
Pada suhu dan tekanan tertentu, 7 gram gas N2 (Mr N2 = 28) mempunyai volume 5 liter dan bila gas O2 diukur pada suhu dan tekanan yang sama mempunyai volume 10 liter. Maka jumlah molekul gas O2 sebanyak ....
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5.
OPEN ENDED QUESTION
3 mins • 1 pt
Beberapa contoh penerapan sifat koloid dalam kehidupan sehari - hari. (1) Sinar matahari yang kelihatan saat masuk ruangan melalui celah (2) Pembentukan delta dimuara sungai (3) Identifikasi DNA jenazah yang tidak diketahui (4) Penggunaan alat Cottrel dalam industri (5) Proses cuci darah Penerapan sifat koloid elektroforesis ditunjukkan oleh nomor . . . .
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6.
OPEN ENDED QUESTION
3 mins • 1 pt
Pempek biasanya disajikan bersama-sama dengan cuko. Cuko terbuat dari gula merah, cuka (asam asetat), bawang putih, kecap, garam, cabai, udang kering (ebi), tongcai (sayuran kering), dan penyedap rasa (MSG). Semua bahan tersebut dimasak hingga mendidih, kemudian disaring. Makanan pempek dengan menggunakan cuko diduga merupakan penyebab utama terjadinya erosi gigi. Cuko diyakini dapat menyebabkan erosi gigi karena keasamannya yang tinggi, yang secara kimiawi dapat melarutkan email gigi. Asam asetat (asam cuka) adalah senyawa k
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7.
OPEN ENDED QUESTION
3 mins • 1 pt
Perhatikan data penerapan sifat koligatif dalam kehidupan sehari-hari
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