KES KIM

KES KIM

9th Grade

7 Qs

quiz-placeholder

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KES KIM

KES KIM

Assessment

Quiz

Chemistry

9th Grade

Practice Problem

Medium

Created by

Abni Susanti

Used 3+ times

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7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

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2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Harga tetapan setimbangan (Kc) untuk reaksi:

AI3+(aq) + 3H2 (l) ⇄AI(OH)3(s) + 3H+(aq)

Ditentukan oleh persamaan ....

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3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Suatu tetapan kesetimbangan dinyatakan dalam rumus

K = [A]3[B]2

[C]2[D]1

Maka persamaan reaksi kesetimbangannya adalah …

3A + 2B ↔ 2C + D

C + D ↔ 3A + B

3A + B ↔ C + D

2C + D ↔ 3A + 2B

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Pada pembakaran batu kapur berikut:

CaCO3(s) ↔ CaO(s) + CO2(g) tetapan kesetimbangan adalah....

K = PCaO. P CO2

K = PCaCO3

PCaO . PCO2

K = P CO2

K = P CaCO3

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Tetapan kesetimbangan untuk reaksi:

2 SO2(g) + O2(g) ⇄ 2 SO3(g) adalah … .

K =PSO32 / PSO22 . PO22

K =PSO32 / PSO22 . O2

K =PSO32 / PSO2. PO2

K =PSO22 . PO2 / PSO

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

reaksi irreversible adalah reaksi

suatu reaksi yang hanya bisa bereaksi satu arah

suatu reaksi yang bereaksi bolak-balik

suatu reaksi yang bereaksi dua arah

reaksi kesetimbangan

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Diketahui reaksi

 H2S(g) + CH4(g)  H2(g) + CS2(g)H_2S_{\left(g\right)}\ +\ CH_{4\left(g\right)}\ \Longleftrightarrow\ H_{2\left(g\right)\ }+\ CS_{2\left(g\right)}  

Tetapan kesetimbangan setelah reaksi tersebut disetarakan adalah...

 Kc = [H2]2 [CS2][H2S]4 [CH4]Kc\ =\ \frac{\left[H_2\right]^{2\ }\left[CS_2\right]}{\left[H_2S\right]^4\ \left[CH_4\right]}  

 Kc = [H2S]4 [CH4][H2]4 [CS2]Kc\ =\ \frac{\left[H_2S\right]^4\ \left[CH_4\right]}{\left[H_2\right]^4\ \left[CS_2\right]}  

 Kc= [H2S]2 [CH4][H2]4 [CS2]Kc=\ \frac{\left[H_2S\right]^2\ \left[CH_4\right]}{\left[H_2\right]^4\ \left[CS_2\right]}  

 Kc = [H2]4 [CS2][H2S]2 [CH4]Kc\ =\ \frac{\left[H_2\right]^{4\ }\left[CS_2\right]}{\left[H_2S\right]^2\ \left[CH_4\right]^{ }}  

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