ChemQuizz-X
Quiz
•
Chemistry
•
10th Grade
•
Easy
Septa Krisnan
Used 1+ times
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20 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Nama yang sesuai dengan aturan IUPAC untuk senyawa W(NO3)2 adalah ...
tungsten nitrat
tungsten(I) nitrat
tungsten(II) nitrat
tungsten(II) nitrit
tungsten(I) nitrit
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rumus senyawa yang sesuai dengan nama IUPAC tetrafosforus dekaoksida adalah ...
PO
PO4
PO10
P4O
P4O10
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
a N2H5 + b O2 → c NO + d H2O
Berturut-turut nilai a, b, c dan d adalah ...
2, 5, 4 dan 5
4, 9, 8 dan 10
4, 8, 9 dan 10
4, 10, 8 dan 9
4, 5, 4 dan 5
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Perbandingan jumlah NOCl dan NO pada reaksi :
NOCl → NO + Cl2
adalah ...
2 : 1
1 : 2
3 : 2
1 : 1
3 : 4
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jika massa rerata suatu atom X adalah 1,6 x 10-22 gram dan massa rerata atom C-12 adalah 2,0 x 10-23 gram; maka massa atom relatif unsur X adalah ...
32
54
68
72
96
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Suatu unsur radioaktif memiliki massa atom sebesar 380 g/mol. Maka massa rerata atom unsur radioaktif tersebut adalah ...
6,3 x 10-22 gram
5,1 x 10-22 gram
4,4 x 10-22 gram
3,6 x 10-22 gram
2,3 x 10-22 gram
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Asam pantotenat merupakan vitamin yang larut dalam air. Asam pantotenat disebut juga dengan vitamin B5. Asam pantotenat memiliki rumus molekul C9H17NO5. Maka berat molekul senyawa asam pantotenat adalah ... (Ar H = 1; C = 12; N = 14; O = 16)
254
219
189
177
152
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