រំលឹកមេរៀនថ្នាក់ទី១២ បំប៉ន (ច)

រំលឹកមេរៀនថ្នាក់ទី១២ បំប៉ន (ច)

12th Grade

15 Qs

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រំលឹកមេរៀនថ្នាក់ទី១២ បំប៉ន (ច)

រំលឹកមេរៀនថ្នាក់ទី១២ បំប៉ន (ច)

Assessment

Quiz

Chemistry

12th Grade

Medium

Created by

Seng Rom

Used 10+ times

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

សមីការគីមីៈ 2A + 3B -> C + 4D

ទំនាក់ទំនងរវាងល្បឿនខណៈបំបាត់ A និងកំណ D គឺ

V(A)t = 42V(D)tV\left(A\right)t\ =\ \frac{4}{2}V\left(D\right)t

V(A)t = 12V(D)tV\left(A\right)t\ =\ \frac{1}{2}V\left(D\right)t

V(A)t = V(D)tV\left(A\right)t\ =\ V\left(D\right)t

Vm(A)t1,t2 = 2 x Vm(D)t1,t2Vm\left(A\right)t1,t2\ =\ 2\ x\ Vm\left(D\right)t1,t2

2.

FILL IN THE BLANK QUESTION

1 min • 1 pt

រូបមន្តគីមីនៃ ម៉ាញ៉េស្យូមនីត្រាត គឺ

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

សមីការគីមីៈ H2O2 + 2I- + 2H+ -> 2H2O + I2

តើប្រភេទគីមីណាមួយ ដែលជាអុកស៊ីតករខ្លាំង ?

H2O2

I-

H+

I2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

ចូរហៅឈ្មោះសមាសធាតុៈ CH3 -CH(CH3) -CH2 -COOH

អាស៊ីតប៊ុយតាណូអុិច

ប៊ុយតាណុល

អាស៊ីត 2-មេទីលប៊ុយតាណូអុិច

អាស៊ីត 3-មេទីលប៊ុយតាណូអុិច

5.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

សមីការគីមីៈ MgCl2 + Pb(NO3)2 -> Mg(NO3)2 + PbCl2

តើប្រភេទគីមីណាខ្លះដែលមានផាស ជា aq?

MgCl2

Pb(NO3)2

Mg(NO3)2

PbCl2

6.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

សមីការគីមីៈ Fe(s) + 2HCl(aq) -> FeCl2(aq) + H2(g)

សមីការអុីយ៉ុងសម្រួលគឺ

Fe + 2Cl- -> FeCl2

Fe + 2H+ -> Fe2+ + H2

H+ + Cl- -> Cl- + H2

Fe(s) + 2HCl(aq) -> FeCl2(aq) + H2(g)

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

សមីការគីមីៈ S2O82- + 2I- -> 2SO42- + I2

រូបមន្តល្បឿនកំណ SO42- នៅខណៈពេល t គឺ

V(SO42)t = limΔt0Δ[SO42]ΔtV\left(SO42-\right)t\ =\ \lim_{\Delta t\rightarrow0}\frac{\Delta\left[SO42-\right]}{\Delta t}

V(SO42)t1,t2 = Δ[SO42]ΔtV\left(SO42-\right)t1,t2\ =\ \frac{\Delta\left[SO42-\right]}{\Delta t}

V(SO42)t = limΔt0Δ[SO42]ΔtV\left(SO42-\right)t\ =\ -\lim_{\Delta t\rightarrow0}\frac{\Delta\left[SO42-\right]}{\Delta t}

គ្មានចម្លើយ

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