Kiểm tra kiến thức hóa học
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Kiểm tra kiến thức hóa học
Quiz
•
Chemistry
•
Professional Development
•
Medium
Thao Phung
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây gọi là xút ăn da?
NaNO3
NaHCO3
Na2CO3
NaOH
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cacbon dioxit là (chất khí gây hiệu ứng nhà kính)
SO2
H2S
NO2
CO2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kim loại có khối lượng riêng lớn nhất (nặng nhất) là
Liti (Li)
Osmi (Os)
Thủy ngân (Hg)
Sắt (Fe)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức của natri clorua (muối ăn) là
NaCl
NaHCO3
Na2CO3
NaOH
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây gọi là xút ăn da?
NaNO3
NaHCO3
Na2CO3
NaOH
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây không tác dụng với nước ở điều kiện thường tạo dung dịch kiềm
kali (K)
natri (Na)
beri (Be)
bari (Ba)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức của natri hidrocacbonat là
NaCl
NaHCO3
Na2CO3
NaOH
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