
hukum lavoisier dan proust
Quiz
•
Chemistry
•
10th Grade
•
Practice Problem
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Medium
Nuzulia Nuzulia
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5 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Hukum Konservasi Massa menyatakan bahwa:
Massa zat sebelum dan setelah reaksi selalu berubah.
Massa zat sebelum dan setelah reaksi kimia tetap sama.
Massa zat setelah reaksi lebih besar daripada sebelum reaksi.
Massa zat sebelum reaksi kurang dari setelah reaksi.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dalam reaksi pembakaran karbon dengan oksigen, karbon dioksida dihasilkan. Jika 12 gram karbon bereaksi dengan 32 gram oksigen, berapa massa karbon dioksida yang dihasilkan?
20 gram
32 gram
44 gram
64 gram
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Hukum Proporsi Tetap menyatakan bahwa dalam suatu senyawa kimia, unsur-unsur penyusunnya selalu:
Berpadu dalam proporsi massa tetap.
Berpadu dalam proporsi volume tetap.
Berpadu secara acak.
Berpadu dalam jumlah molekul yang sama.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jika dalam pembentukan air (H₂O), hidrogen dan oksigen selalu bergabung dalam rasio massa 1:8, berapa gram oksigen yang dibutuhkan untuk bereaksi dengan 4 gram hidrogen?
8 gram
32 gram
16 gram
36 gram
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Seorang siswa melakukan percobaan tentang reaksi antara magnesium (Mg) dan oksigen (O₂) yang menghasilkan magnesium oksida (MgO). Jika massa magnesium sebelum reaksi adalah 24 gram dan massa magnesium oksida yang terbentuk setelah reaksi adalah 40 gram, berapa massa oksigen yang bereaksi?
12 gram
16 gram
18 gram
24 gram
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