
Chuong1 sự điện li
Quiz
•
Chemistry
•
1st Grade
•
Easy
Thuong MS
Used 1+ times
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54 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Chất nào sau đây không dẫn điện được?
KCl rắn, khan
CaCl2 nóng chảy
NaOH nóng chảy
HBr hòa tan trong nước
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Trong các chất: K2SO4, C2H5OH, C12H22O11, CH3COOH, Ca(OH)2, CH3COONH4. Số chất điện li là?
3
4
5
2
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Chất nào sau đây là chất điện li yếu
HCl
H2SO4
HNO3
CH3COOH
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Chất nào sau đây là chất điện li mạnh?
Mg(OH)2
HClO
HF
AgNO3
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Phương trình điện li nào sau đây không đúng?
HNO3 → H+ + NO3-
K2SO4→ K2+ + SO42-
Mg(OH)2 ⇄ Mg2+ + 2OH-
HF ⇄ H+ + F-
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Công thức hóa học của chất mà khi điện li tạo ra ion Fe3+ và NO3– là
Fe(NO3)2.
Fe(NO3)3.
Fe(NO2)2.
Fe(NO2)3.
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Trộn 200 ml dung dịch NaCl 1M với 100 ml dung dịch BaCl2 0,5M, thu được dung dịch Z. Nồng độ ion Cl- trong dung dịch Z là
1M
0,5M
1,5M
2M
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