Ujian Sekolah Kimia
Quiz
•
Science
•
12th Grade
•
Practice Problem
•
Hard
Juhardi Juhardi
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40 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Perhatikan diagram susunan partikel atom dari unsur P dan Q berikut!
Notasi unsur P dan Q adalah ...
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
n = 3; l = 0; m = -1; s = +½
n = 3; l = 0; m = +1; s = -½
n = 3; l = 1; m = +1; s = +½
n = 3; l = 2; m = 0; s = -½
n = 3; l = 1; m = 0; s = -½
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
[Ar] 4s2 3d104p5
Golongan VII A
[Ar] 3d10 4s2 4p5
Golongan VII B
[Ar]3d104s24p5
Golongan VB
[Ar]3d10 4s2 4p6
Golongan VIIIA
[Ar]3d10 4s2 4p3
Golongan VA
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Fraksi mol CO dalam campuran gas CO dan CO2 adalah 0,75. Jika dalam wadah 1 L dan temperatur 500 K, campuran gas tersebut memiliki tekanan 8,2 atm, jumlah CO dalam campuran gas tersebut adalah ... (R = 0,82 L atm/mol K
0,05 mol
0,10 mol
0,15 mol
0,20 mol
0,25 mol
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
0,72 MS-1
1,44 MS-1
3,20 MS-1
6,84 MS-1
12,62 MS-1
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Gas ammonia dapat dibuat melalui reaksi: N2(g) + H2(g) → NH3(g) Jika sebanyak 14 gram gas nitrogen direaksikan dengan gas hidrogen, volume gas amonia yang dihasilkan pada keadaan standar (STP) adalah .... (Ar N= 14; H= 1)
6,72 liter
11,2 liter
22,4 liter
44,8 liter
67,2 liter
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Perhatikan reaksi asam basa menurut Bronstd-Lowry berikut ini!
NH4+ (aq)+ H2O(aq)⇌ NH3(aq)+ H3O+ (aq)
CH3COOH(aq)+ HNO2(aq)⇌ CH3COOH2+(aq)+NO2-(aq)
Spesi yang merupakan pasangan asam basa konjugasi adalah ....
CH3COOH dan HNO2
NH4+dan NH3
NH3dan H3O+
CH3COOH2+dan NO2-
NH4+ dan H2O
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