b0108
Authored by 40. Minh Tú
Science
8th Grade
Used 1+ times
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15 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Đâu không phải công thức của acid?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho 1 mol khí Oxygen tác dụng với 2 mol khí hydrogen. Tính khối lượng và cho biết tên chất tạo thành
18g nước
36g nước
72g dầu
18g dầu
3.
OPEN ENDED QUESTION
3 mins • 1 pt
Định nghĩa ocid base?
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4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Cho 1 mol acid HF tác dụng với 0.7 mol kim loại Fe. Phương trình được tính theo số mol của:
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Điều đầu tiên khi cần làm để lập các bước phương trình hóa học.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong các bước thiết lập phương trình hóa học, không có yếu tố:
Viết sơ đồ
Vẽ phương trình
Mở vở ra chép
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
xBa(OH)2 + yHCl -> zBACl + H2O.
x+y+z = ?
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