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Chemistry
11th Grade
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49 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
chất nào sau đây thuộc loại chất điện li mạnh?
CO2
KOH
H2O
H2S
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
chất nào sau đây thuộc loại chất điện li yếu
NaHCO3
C2H5OH
H2S
NH4CL
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
diêu tiêu Chile (hay diêm tiêu natri) là tên gọi khác của hợp chất nào sau đây
sodium chloride
potassium sulfate
sodium nitrate
potassium nitrate
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
chất nào sau đây thuộc loại chất điện li yếu?
KCl
HF
HNO3
NH4Cl
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
cho phương trình: NH3 + H2O ----> NH4+ + OH-
trong phản ứng thuận, theo thuyết Bronsted - Lowry chất nào là base
NH3
H2O
NH4+
OH-
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
cho phương trình: NH3 + H2O ---> NH4+ + OH-
trong phản ứng thuận theo thuyết Bronsted - Lowry chất nào là acid
NH3
H2O
NH4+
OH-
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
trong phản ứng sau đây, chất nào đóng vai trò là acid theo thuyết Bronsted - Lowry?
H2S(aq) + H2O ---> HS-(aq) + H3O+(aq)
H2S và H2O
H2S và H3O+
H2S và HS-
H2O và H3O+
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