ÔN TẬP HÓA 8 CUỐI KÌ 2 - 2023

Quiz
•
Chemistry
•
6th - 8th Grade
•
Medium
Ha Thu
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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức của bạc clorua là:
AgCN
AgCl2
AgCl
Ag2Cl
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho mẩu Na vào cốc nước dư thấy có 4,48 lít khí bay lên ở đktc. Tính khối lượng Na tham gia phản ứng.
9,2 gam
4,6 gam
2 gam
9,6 gam
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hòa tan V lít khí SO3 (đktc) gam vào nước dư, thu được 49 gam H2SO4. Tính V.
11,2.
22,4
16,8
19,6
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy các chất tác dụng được với nước tạo ra dung dịch bazơ là:
MgO, K2O, CuO , Na2O
CaO, K2O, BaO, Na2O
CaO, Fe2O3, K2O, BaO
Li2O, K2O, CuO, Na2O
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tên gọi của NaOH:
Natri hidroxit
Natri oxit
Natri (II) hidroxit
Natri hidrua
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho các oxit sau: CuO, K2O, CaO, SiO2, SO2. Số oxit không tác dụng được với nước là
1
2
3
4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho nước tác dụng với SO3 thu được dung dịch A. Khi cho quỳ tím vào dung dịch A, quỳ tím chuyển sang màu gì?
ĐỎ
XANH
TÍM
KHÔNG ĐỔI
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