រលឹកមេរៀនត្រៀមប្រលង (៣)

Quiz
•
Chemistry
•
12th Grade
•
Hard
Seng Rom
Used 2+ times
FREE Resource
11 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
សមីការៈ 2Al + 6HCl -> 2AlCl3 + 3H2
សមីការអុីយ៉ុងសម្រួលគឺ
2Al3+ + 3Cl- -> 2AlCl3
2Al3+ + 6H+ -> 2Al3+ + 3H2
2Al + 6HCl -> 2AlCl3 + 3H2
គ្មានចម្លើយ
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
សូលុយស្យុងមួយមាន pOH = 2.7។ សូលុយស្យុងនេះអាចមាន
(100.3 = 2)
pH = 11.7
pH = 11.3
[H3O+] = 5 x 10-12M
[OH-] = 2 x 10-3M
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
តើខ្សែកោងណាមួយ ជាខ្សែកោងអង្គធាតុប្រតិករ?
A
B
A និង B
គ្មានចម្លើយ
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
រូបមន្តទូទៅរបស់ អាមីនថ្នាក់ទី១ គឺ
(សរសេរមិនបាច់ដកឃ្លាទេ)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
គេរំលាយ 0.00250mol នៃ Al2(SO4)3 រលាយក្នុងទឹក។ ចំនួនម៉ូល អុីយ៉ុងសរុបដែលទទួលបានគឺ 0.125mol។
ត្រឹមត្រូវ
មិនត្រឹមត្រូវ
គិតមិនចេញ
មិនដឹង
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
រូបមន្តស្ទើរលាតៈ ឈ្មោះ
2-អាមីណូ ប្រូប៉ាណូអុិច
អាសុីត 2-អាមីណូ ប្រូប៉ាណូអុិច
អាសុីត 1-អាមីណូ ប្រូប៉ាណូអុិច
អាសុីត 2-អាមីណូ ប៊ុយតាណូអុិច
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
គេមានរូបមន្តទូទៅ R -CH2OH
សមាសធាតុខាងលើនេះគឺជា..............
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