
hoa 9 bai oxit
Authored by Oanh Oanh
Chemistry
9th Grade
Used 39+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Oxit được chia làm mấy loại?
2
3
4
5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào hòa tan trong nước tạo thành dung dịch làm quỳ tím hóa xanh?
CuO
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Nhóm bazo nào sau đây là kiềm?
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Nhóm chất nào sau đây toàn là oxit axit?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức đúng của oxit sắt (III):
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Thành phần phần trăm về khối lượng của Ca trong CTHH CaO là:
28,57%
71,43%
87,67%
71,42%
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Nhóm oxit nào sau đây tác dụng với dung dịch NaOH?
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