
Hukum Dasar Kimia quickpost test
Authored by kris astuti
Chemistry
10th Grade
Used 10+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 20 pts
Pembakaran sempurna gas amoniak memerlukan gas oksigen menghasilkan gas nitrogen dioksida dan uap air. Dengan menganggap bahwa kadar oksigen di udara 20 %, tentukan volume udara yang diperlukan untuk membakar 4 liter amoniak.!
35 L
53 L
43 L
20 L
2.
MULTIPLE CHOICE QUESTION
5 mins • 20 pts
Di dalam senyawa CaS, perbandingan massa Ca : S = 5 : 4. Jika 10 gram kalsium direaksikan dengan 9 gram belerang, maka berapakah massa CaS yang terbentuk?
18 gram
19 gram
9 gram
96 gram
3.
MULTIPLE CHOICE QUESTION
5 mins • 20 pts
Unsur X dan Y membentuk 2 senyawa. Massa X pada senyawa I adalah 30% dan massa Y pada senyawa II adalah 60%. Perbandingan massa X pada senyawa I dan pada senyawa II adalah ....
2 : 7
7 : 3
9 : 14
14 : 9
4.
MULTIPLE CHOICE QUESTION
5 mins • 20 pts
Perbandingan massa unsur magnesium dan oksigen di dalam magnesium oksida adalah 3 :2. Jika 6 gram megnesium direaksikan dengan oksigen untuk membentuk senyawa magnesium oksida, berapa gram oksigen yang diperlukan dan beraapa magnesium oksida yang dihasilkan ?
4 gram Oksigen dan 10 gram MgO
2 gram Oksigen dan 8 gram MgO
4 gram Oksigen dan 14 gram MgO
4 gram Oksigen dan 5 gram MgO
5.
MULTIPLE CHOICE QUESTION
5 mins • 20 pts
Sebanyak 12 L C3H8 dibakar habis dengan oksigen. Jika di hitung pada suhu dan tekanan yang sama volume gas CO2 yang dihasilkan adalah.... Liter
12
24
36
46
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