Revision lessons grade 12

Revision lessons grade 12

12th Grade

10 Qs

quiz-placeholder

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Revision lessons grade 12

Revision lessons grade 12

Assessment

Quiz

Chemistry

12th Grade

Hard

Created by

Seng Rom

Used 15+ times

FREE Resource

10 questions

Show all answers

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

V(A)t = limΔto Δ[A]ΔtV\left(A\right)t\ =\ \lim_{\Delta t\rightarrow o}\ \frac{\Delta\left[A\right]}{\Delta t}

V(A)t = limxy Δ[A]ΔtV\left(A\right)t\ =\ -\lim_{x\rightarrow y}\ \frac{\Delta\left[A\right]}{\Delta t}

Vm(A)t1,t2 = Δ[A]ΔtVm\left(A\right)t1,t2\ =\ \frac{\Delta\left[A\right]}{\Delta t}

Vm(A)t1,t2= Δ[A]ΔtVm(A)t1,t2=-\ \frac{\Delta\left[A\right]}{\Delta t}

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

 2A(g)+B(g) c(g) + D(g)+ សមីការគីមីៈ2A_{\left(g\right)}+B_{\left(g\right)}\leftrightarrow\ c_{\left(g\right)}\ +\ D_{\left(g\right)}+\ កម្តៅ 

ប្រសិនបើគេបង្កើតកម្តៅប្រព័ន្ទ តើលំនឹងរកិលទៅខាងណា?

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