
US KIMIA
Quiz
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Other
•
12th Grade
•
Practice Problem
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Medium
Nindi Syuhadha
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40 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Perhatikan tabel rumus kimia senyawa ion dan kovalen
Berdasarkan tabel di atas, yang termasuk senyawa kovalen adalah …
MgO dan Cl2O7
N2O5 dan NaCl
N2O5 dan Cl2O7
Cl2O7 dan Al2O3
Al2O3 dan NaCl
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Jumlah proton, eletron, dan netron berturut turut adalah…
19, 19, 20
19, 20, 19
19, 19, 19
20, 19, 19
19, 19, 39
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Pada proses pemisahan minyak bumi menjadi fraksi-fraksi, cara pemisahan yang digunakan adalah …
Filtrasi/penyaringan
Kromatografi
Sublimasi
Distilasi/Penyulingan
Dekantasi
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui 63,5 gram tembaga (Cu) bereaksi dengan 32 gram belerang (S), menghasilkan tembaga (II) sulfide (CuS)
Cu + S --> CuS
Berdasarkan Hukum Kekekalan Massa, maka jumlah CuS sebanyak ...gram
31,5
32
63,5
64
95,5
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui persamaan reaksi :
CH4(g) + O2(g) à CO2(g) + H2O(g) (belum setara)
Koefisien yang tepat untuk persamaan reaksi tersebut , berturut-turut adalah ...
1, 1, 1, 2
1, 2, 1, 2
2, 1, 2, 1
2, 2, 1, 1
2, 1, 1, 1
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Nomor atom suatu unsur X sebesar, 13. Periode dan golongan unsur X dalam Sistem Periodik Unsur adalah …
2. 11
2. 9. 2
2. 8. 3
2. 10. 1
2. 7. 4
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Berikut ini konfigurasi elektron beberapa unsur:
11Na = 2.8.1
12Mg = 2.8.2
13Al = 2.8.3
17Cl = 2.8.7
8O = 2.6
Pasangan rumus kimia dan jenis ikatan yang tepat dari unsur di atas adalah ...
NaCl , ikatan kovalen
MgCl2 . ikatan ion
MgO , ikatan kovalen
Cl2O7 , ikatan ion
Al2O3 , ikatan kovalen
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