រលឹកមេរៀនថ្នាក់ទី១២ បំប៉ន(ឃ)

Quiz
•
Chemistry
•
12th Grade
•
Hard
Seng Rom
Used 4+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
តើធាតុណាខ្លះដែលមានវ៉ាឡ៉ង់ ប្រែប្រួល?
ប៉ូតាស្យូម (K)
ដែក (Fe)
ទង់ដែង (Cu)
ស័ង្កសី (Zn)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
សមីការគីមីៈ A + 2B -> 3C + 4D
ទំនាក់ទំនងរវាងល្បឿនបំបាត់ B និងកំណ C នៅខណៈពេល t គឺ
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
តើសមាសធាតុណាខ្លះដែលមិនរលាយក្នុងទឹក?
ស័ង្កសីស៊ុលផួរ (ZnS)
កាល់ស្យូមកាបូណាត (CaCO3)
ដែក III ប្រួមួ (FeBr3)
សំណ II អុីយ៉ូឌួ (PbI2)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
តើរូបមន្តសមាសធាតុមួយណាខាងក្រោម ដែលមិនត្រឹមត្រូវ?
K2SO4
ZnS
Al2SO4
FeCl2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
សមីការគីមីៈ A + B -> C + D
លឿនមធ្យមបំបាត់អង្គធាតុប្រតិករ B គឺជាផលធៀបរវាងបម្រែបម្រួលកំហាប់ B នឹងបម្រែបម្រួលរយៈពេល។
ពិតជាត្រឹមត្រូវណាស់
មិនត្រឹមត្រូវទេ
មិនចេះ
ពិបាកណាស់
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
សមីការគីមីៈ Ca(OH)2 + 2HCl -> CaCl2 + 2H2O
បើគេប្រើ 200mL HCl កំហាប់ 0.4M គេទទួលបាន
n(CaCl2) = 0.08mol
n(H2O) = 0.08mol
n(CaCl2) = 0.04mol
គ្មានចម្លើយដែលត្រឹមត្រូវ
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
សមីការគីមីៈ Ca(OH)2 + 2HCl -> CaCl2 + 2H2O
តើសមាសធាតុណាខ្លះដែលអាចរលាយក្នុងទឹកបាន ឬ មានផាសជា aq?
Ca(OH)2
HCl
CaCl2
H2O
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