Pre test
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Hard
Desi Wahyuningsih
Used 1+ times
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6 questions
Show all answers
1.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
Apabila massa atom relatif Fe=56, S=32 dan O=16 maka massa rumus relatif Fe2(SO4)3... .
2.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
Apabila massa atom relatif H=1 dan O = 16, maka massa rumus relatif H2O adalah ...
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Persamaan reaksi berikut yang setara adalah ...
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Dilaboratorium terdapat NaOH 1 M. Apabila di dalam botol tersebut ternyata larutan yang ada hanya 250 mL, berapa mol NaOH yang terlarut di dalamnya?
0,1 mol
2,5 mol
0,25 mol
0,025 mol
5.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
Tentukan massa dari 5 mol CO(NH2)2 jika diketahui Ar C=12, N=14, O=16, H=1
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Massa dari 3,01 x 1023 molekul H2O (Mr= 18) adalah .. .gram
4,5
9
18
36
72
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