
Revision lessons grade 12
Authored by Seng Rom
Chemistry
12th Grade
Used 15+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
គណនាចំនួនម៉ូលអុីយ៉ុងសរុប ដែលមានក្នុង 0.16mol នៃអាលុយមីញ៉ូម ស៊ុលផាត។
0.32mol
0.64mol
0.8mol
0.16mol
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
សមីការៈ A + 3B -> C + D
រូបមន្ត ល្បឿនមធ្យមបំបាត់អង្គធាតុប្រតិករ A គឺ
3.
FILL IN THE BLANK QUESTION
45 sec • 1 pt
សមាសធាតុដែលរលាយក្នុងទឹក តែមិនបំបែកជាអុីយ៉ុង និងមិនចម្លងចរន្តអគ្គិសនីហៅថា...............................
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
តើសមាសធាតុណាមួយខាងក្រោម ដែលមិនរលាយក្នុងទឹក?
AgNO3
មិនមានចម្លើយ
PbSO4
K3PO4
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
សមីការគីមីៈ 2KOH + H2SO4 -> K2SO4 + 2H2O
តើមួយណាជាសមីការអុីយ៉ុងសម្រួល?
2H+ + 2OH- ->2 H2O
K+ + SO42- -> K2SO4
H+ + OH- -> H2O
2K+ + OH-+ 2H+ + SO42- -> 2K+ + SO42- + 2H2O
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
សូលុយស្យុងអាស៊ីតស៊ុលផួរិច(H2SO4) មួយ មានកំហាប់ 0.00600M។
មានតម្លៃ pH ស្មើនឹង......................
2.23
1.92
2.32
1.29
7.
FILL IN THE BLANK QUESTION
45 sec • 1 pt
ប្រសិនបើគេបង្កើតកម្តៅប្រព័ន្ទ តើលំនឹងរកិលទៅខាងណា?
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