
Ôn tập giữa HK2 Hóa 9
Quiz
•
Chemistry
•
9th Grade
•
Practice Problem
•
Medium
Nguyễn Tùng
Used 1+ times
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32 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Muối nào sau đây thuộc loại muối axit?
CaCO3
MgCO3
Na2CO3
NaHCO3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Muối nào sau đây không tan trong nước?
Ca(HCO3)2
MgCO3
Na2CO3
NaHCO3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Thuốc muối (thuốc chữa đau dạ dày) có thành phần chính là
Ca(HCO3)2
MgCO3
Na2CO3
NaHCO3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phát biểu nào sau đây sai về H2CO3
Tên gọi là axit cacbonic
Kém bền, dễ phân hủy
Là axit yếu hơn H2SO4
Axit mạnh, làm quỳ tím hóa đỏ
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Đá vôi có thành phần chính là
CaCO3
Ca(HCO3)2
CaO
CaCl2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tên gọi của Ca(HCO3)2 là
Canxi cacbonat
Canxi hidrocacbonat
Canxi oxit
Canxi sunfat
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hiện tượng quan sát được khi cho 1 lượng dư dung dịch HCl vào dung dịch Na2CO3 là
Có khí không màu thoát ra
Có kết tủa trắng
Có khí màu vàng lục
Có kết tủa nâu đỏ
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