
Đề cương hoá giữa kì I
Quiz
•
Science
•
11th Grade
•
Medium
QK Stramm
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42 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho các yếu tố, nồng độ (a), nhiệt độ (b) áp suất (c), diện tích tiếp xúc (d), xúc tác (e). Yếu tố ảnh hưởng đến cân bằng hóa học là
(a), (b), (c), (d)
(a), (b), (d), (e)
(a), (b), (c), (e)
(a), (b), (c)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho phản ứng. 2NaHCO3 <=> Na2CO3(s) + CO2(g)+ H2O ∆H=+129kJ. Phản ứng xảy ra theo chiều nghịch khi
thêm xúc tác
Giảm nhiệt độ
tăng nhiệt độ
giảm áp suất
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch nào dẫn điện được
NaCl
C2H5OH
HCHO
C6H12O6
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây là chất điện li
MgO
CH4
HNO3
CI2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây là acid
NaCl
HCL
K₂SO4
KOH
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây là base yếu
Cu(OH)2
KCI
NaOH
CH3COOH
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch nào làm phenolphthalein đổi màu hồng?
NACI
Ba(OH)2
H2SO4
NH4NO3
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