Khoa Học Tự Nhiên
Quiz
•
Science
•
8th Grade
•
Practice Problem
•
Easy
10. 6a1
Used 6+ times
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38 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Trong số những chất có công thức hoá học dưới đây, chất nào quỳ tím đổi từ màu tím sang màu đỏ?
NaOH
H2SO4
NaCL
Ca(OH)2
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Chất nào sau đây là base?
NaOH
Na2SO4
NaHCO3
NaCL
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Dãy chất nào chỉ gồm các acid?
SO2,KOH
CH3COOH,H2SO4
CaO,HNO3
HCL,NaOH
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Dãy gồm các kim loại phản ứng được với dung dịch H2SO4 loãng là:
Fe,AL,Ag,Pt
Ba,Mg,Fe
Na,Ba,Cu,Ag
Fe,Mg,Zn,Cu
Answer explanation
k trl dc là ôn lằn nha bé!!hihi
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
P2O5 là oxide:
Oxide base
Oxide trung tính.
Oxide acid.
Oxide lưỡng tính.
Answer explanation
giỏi quá chúc mừng bạn đã vượt qua câu hỏi!!
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Oxide nào sau đây là oxide base?
SO2
P2O5
FeO
CO
Answer explanation
giỏi quá!!!!
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Muối nào trong đó có kim loại hóa trị I trong các muối sau
Al2(SO4)3, Na2SO4.
BaCl2; CuSO4. .
Na2SO4, BaCl2.
K2CO3; Na2SO4
Answer explanation
sì lay quá e
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