
Try Out UNBK
Authored by Abdul Latip
Chemistry
12th Grade
Used 3+ times

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11 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Perhatikan diagram susunan partikel atom dari unsur P dan Q berikut!
Notasi unsur P dan Q adalah ....
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Unsur X dinotasikan sebagai:
Konfigurasi elektron dan letak unsur X pada golongan dan periode adalah ....
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Serbuk tembaga (II) oksida larut dalam asam klorida membentuk tembaga (II) klorida dan air. Persamaan reaksi setara dan lengkap dari reaksi tersebut adalah ....
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kalsium dan oksigen dapat bereaksi membentuk kalsium oksida dengan perbandingan massa sebagai berikut:
Berdasarkan data tersebut, perbandingan massa kalsium dengan oksigen dalam senyawa tersebut
adalah ....
2:3
2:5
3:2
3:4
5:2
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Pada proses industri pengolahan logam besi terjadi reaksi:
Fe2O3 (s) + CO(g) → Fe(s) + CO2(g) (belum setara)
Jika dibutuhkan 16 gram besi (III) oksida, maka volume gas CO2 yang dihasilkan (STP) sebanyak ... (Jika Ar = Fe = 56 ; O = 16)
1,12 L
2,24 L
4,48 L
6,72 L:
11,2 L
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Perhatikan gambar uji daya hantar listrik 3 jenis larutan berikut!
Urutan kekuatan daya hantar listrik ketiga larutan tersebut mulai dari yang terkuat ke yang terlemah
adalah....
(3), (2) dan (1)
(2), (3) dan (1)
(2), (1) dan (3)
(1), (3) dan (2)
(1), (2) dan (3)
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Ke dalam 100 mL akuades dimasukkan padatan Ca(OH)2 (Mr = 74) sebanyak 0,37 gram (penambahan
volum Ca(OH)2 padat diabaikan) lalu diaduk hingga larut sempurna. Harga pH larutan Ca(OH)2 tersebut adalah ....
1 + log 5
3 + log 5
5 +log 1
12 +log 5
13 +log 1
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