Latihan Soal Hukum-Hukum Dasar Kimia
Quiz
•
Chemistry
•
9th - 12th Grade
•
Hard
Heri Munandar
Used 22+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Serbuk magnesium yang massanya 3 gram tepat habis bereaksi dengan sejumlah sebuk belerang menghasilkan senyawa magneisum sulfida yang massanya 7 gram. Massa serbuk belerang yang telah habis bereaksi adalah
10 gram
7 gram
4 gram
3 gram
1 gram
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Di dalam senyawa CaS, perbandingan massa Ca : S = 5 : 4. Jika 10 gram kalsium direaksikan dengan 9 gram serbuk belerang, maka massa CaS yang dihasilkan sebanyak
9 gram
9,5 gram
10 gram
18 gram
19 gram
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Unsur A dan B membentuk dua macam senyawa dengan komposisi sebagai berikut. Perbandingan massa A di dalam senyawa I dan II pada senyawa B yang tetap adalah
1 : 1
1 : 2
2 : 1
2 : 3
3 : 2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Gas propana (C3H8) dibakar sempurna dengan reaksi: C3H8 (g) + O2 (g) ⎯⎯→ CO2 (g) + H2O(l) Untuk membakar sempurna setiap liter gas propana, dibutuhkan gas oksigen sebanyak
1,0 liter
3,0 liter
3,5 liter
4,0 liter
5,0 liter
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Amonia dapat dibuat melalui reaksi: N2(g)+H2(g) ⎯⎯→NH3(g) Jika 60 liter gas nitrogen direaksikan dengan 240 liter gas hidrogen yang diukur pada suhu dan tekanan yang sama, maka volume gas ammonia yang dihasilkan adalah
60 L
80 L
120 L
180 L
240 L
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Di dalam senyawa magneisum sulfida (MgS), perbandingan massa Mg : S = 3 : 4. Jika direaksikan 1,6 gram logam Mg dan 0,4 gram serbuk belerang, tentukan massa MgS yang dapat dihasilkan. Jika ada zat yang sisa, berapa massanya?
massa MgS = 0,7 gram, Pereaksi Mg bersisa 1,3 gram
massa MgS = 2,7 gram, Pereaksi S bersisa 1,3 gram
massa MgS = 0,7 gram, Pereaksi S bersisa 1,3 gram
massa MgS = 5,7 gram, Pereaksi S bersisa 1,3 gram
massa MgS = 5,7 gram, Pereaksi Mg bersisa 1,3 gram
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dua buah unsur A dan B dapat membentuk tiga macam senyawa. Senyawa I mengandung 15 gram unsur A dan 75 gram unsur B. Senyawa II mengandung 30 gram unsur A dan 75 gram unsur B. Senyawa III mengandung 40 gram unsur A dan 120 gram unsur B. Tentukan perbandingan massa unsur B pada ketiga senyawa tersebut!
10 : 5 : 6
4 : 5 : 6
5 : 5 : 7
10 : 3 : 6
10 : 5 : 5
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