
Bài kiểm tra
Authored by Hường Huỳnh
Chemistry
8th Grade
Used 9+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 2 pts
Dãy chất nào sau đây gồm toàn là đơn chất kim loại?
Na, Ba, C, N2
Cu, Fe, Ag, Au
Fe, C, O2, H2
S, Na, Zn, C
2.
MULTIPLE SELECT QUESTION
30 sec • 2 pts
Những chất nào là acid trong các chất sau đây?
Ca(OH)2
H2SO4
NaNO3
HCl
3.
MULTIPLE CHOICE QUESTION
20 sec • 2 pts
Dãy chất nào sau đây gồm toàn là base tan (kiềm)?
NaOH, Ba(OH)2, Al(OH)3
NaOH, Fe(OH)3, Cu(OH)2
NaOH, KOH, Al(OH)3
NaOH, Ba(OH)2, KOH
4.
MULTIPLE CHOICE QUESTION
20 sec • 2 pts
............................... là hợp chất mà phân tử có nguyên tử kim loại liên kết với nhóm hydroxide. Khi tan trong nước tạo ra ion OH-.
Acid
Muối
Nước
5.
MULTIPLE CHOICE QUESTION
20 sec • 2 pts
Acid là hợp chất mà phân tử có nguyên tử ................................. liên kết với gốc acid. Khi tan trong nước, acid tạo ra ion H+.
hydroxide
oxygen
gốc acid
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