
Việc nên làm
Authored by Đức Lê
Fun
11th Grade
Used 59+ times

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22 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Câu 1 Nhận xét nào sau đây không đúng?
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Câu 2. Phản ứng thuận nghịch là phản ứng
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Câu 3: Cho cân bằng hoá học: H2 (g) + I2 (g) 2HI (g); > 0. Cân bằng không bị chuyển dịch khi
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Câu 4. Cho cân bằng hoá học sau: H2(g) +I2 (g) _x0001_ 2HI(g) _x0001_= -9,6kJ
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Câu 5: Trong số các dung dịch có cùng nồng độ mol sau đây, dung dịch nào có độ dẫn điện yếu nhất?
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Câu 6: Hòa tan một acid vào nước ở 250C, kết quả là:
A. [H^+]<[OH^-]
B. [H^+]=[OH^-]
C. [H^+]>[OH^-]
D. [H^+].[OH^-]>1,0.10^14
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Câu 7: Dãy các chất gồm những chất điện li mạnh là:
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