REMEDIAL MOVING KIMIA .5
Quiz
•
Chemistry
•
11th Grade
•
Medium
lasmiati lasmiati
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Rumus yang menyatakan perbandingan paling sederhana atom dari unsur-unsur dalam senyawa. Disebut…
Rumus unsur
Rumus empiris
Rumus molekul
Rumus senyawa
senyawa ion
2.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Di bawah ini yang termasuk kelompok rumus empiris adalah ….
C6H6, CH4, C2H4
CH3, CH3O, CH2
NO2, H2O2, SO2
C3H6, C2H4, H2O
H2O, H2O2, CO2
3.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Suatu senyawa mempunyai rumus empiris (CHO2)n dengan massa rumus relatif 90 (Ar C = 12 ; H = 1 ; O = 16), maka molekul senyawa tersebut adalah
CHO2
C2H2O2
C3H3O3
C6H12O6
C2H2O4
4.
CLASSIFICATION QUESTION
2 mins • 2 pts
Tentukan benar atau salah dari pernyataan berikut....
Groups:
(a) Benar
,
(b) Salah
Rumus molekul mnggambarkan jumlah yang sebenarnya atom-atom penyusun suatu senyawa
Massa molekul relatif dari CH3COOH adalah 56
5.
CLASSIFICATION QUESTION
3 mins • 3 pts
Pilihlah apakah pernyataan berikut benar atau salah.........
Groups:
(a) Benar
,
(b) Salah
Massa dari 6 mol Natrium (Na) adalah Ar (Na=23) adalah 138 gram
Jumlah mol dari 171 gram C12H22O11 Mr=342 adalah 0,25
6.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Bentuk senyawa anhidrat dari CuSO4.5H2O adalah....
H2O
SO4
Cu
CuSO4
Cu
7.
MULTIPLE CHOICE QUESTION
3 mins • 4 pts
Pada pemanasan kristal terusi (CuSO4 x H2O) terjadi pengurangan massa dari 24,90 menjadi 15,90 gram sesuai :CuSO4 x H2O --> CuSO4 x H2O. Tentukan rumus kristal terusi tersebut! (Ar Cu =63, S = 32, O = 16, H = 1
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