hóa hk2
Authored by Đạo Nguyễn Ngọc
Chemistry
12th Grade
Used 2+ times
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74 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây là muối axit
NaHCO3
Na2SO4
Na2CO
NaCl
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cấu hình electron lớp ngoài cùng của nguyên tử kim loại kiềm là
ns1
ns2 np1
ns2 np3
ns2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Natri phản ứng với clo sinh ra sản phẩm nào sau đây?
NaCl
KCl
NaClO
NaOH
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Số electron lớp ngoài cùng của nguyên tử kim loại kiềm là
1
2
3
4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nhận xét nào sau đây không đúng?
Các kim loại kiềm đều có nhiệt độ nóng chảy rất cao.
Các nguyên tử kim loại kiềm đều có cấu hình electron lớp ngoài cùng là ns1.
Các kim loại kiềm đều có tính khử mạnh.
Các kim loại kiềm đều mềm và nhẹ.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kim loại nào sau đây tan hoàn toàn trong nước dư?
Na
Ag.
Cu.
Au.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong các kim loại sau, kim loại nào có tính khử mạnh nhất
Cs
K
Li
Na
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