tính chất hóa học của nước
Quiz
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Chemistry
•
8th Grade
•
Medium
nguyen luat
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Đâu là công thức hóa học của nước?
H3O
H2O
HO2
H2O2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong phân tử nước có bao nhiêu nguyên tử H
1
2
3
4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tinha chất nào sau đây là của nước
Chất lỏng không màu, không mùi, không vị, sôi ở 100oC
Chất lỏng không màu, không mùi, không vị, sôi ở 78,3oC
Chất lỏng màu trắng, không mùi, không vị, sôi ở 100oC
Chất lỏng màu trắng, không mùi, không vị, sôi ở 78,3oC
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kim loại nào sau đây tác dụng với nước
Cu
Fe
Na
Pb
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Khi cho kim loại vào nước thu được khí nào?
O2
N2
Cl2
H2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Khi cho kim loại Na tác dụng với H2O thu được
NaOH và H2O
NaOH và H2
NaO và H2
Na2O và H2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Khi cho CaO vào H2O ta thu được
CaOH
Ca(OH)2
Ca(OH)3
Ca2OH
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