
hoá học qs ak
Authored by phuowng haf
Science
8th Grade
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24 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức hoá học của acid có trong dịch vị dạ dày là gì?
CH3COOH
HCl
H2SO4
HNO3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Gốc acid của acid HNO3 có hoá trị là bao nhiêu?
1
2
3
4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho các chất sau: HNO3, H3PO4, CH3COOH, HCl, NaOH, H2O, NaCl, KCl KOH.
Dãy các chất đều làm quỳ tím chuyển đỏ là:
KNO3, Na3PO4, CH3COOH, HCl
HNO3, H3PO4, KOH, NaOH
NaNO3, H3PO4, CH3COOH, NaCl
HNO3, H3PO4, CH3COOH, HCl
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy dung dịch nào sau đây gồm các chất có pH > 7?
KCI
HCl
NaOH
CaSO4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy chất nào sau đây chỉ gồm các base kiềm?
NaOH, KOH
KOH, Cu(OH)2
NaOH, Mg(OH)2
Mg(OH)2, Cu(OH)2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tên gọi của Sodium hydroxide ứng với công thức nào sau đây?
KOH
NaOH
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức của carbon dioxide là gì?
CO
CO3
CO2
C2O
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