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Kimia kls X

Authored by Ujian smkn6

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10th Grade

Used 1+ times

Kimia kls X
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25 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Diketahui massa atom relatif (Ar) H = 1; C = 12; O = 16 dan Na = 23. Maka massa molelul relatif (Mr)  Na2CO3Na_2CO_3  .  10H2O10H_2O   adalah . . . .

42

108

286

106

206

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Jika diketahui Ar Fe = 56, S = 32 dan O = 16 , massa molekul relatif senyawa  Fe2(SO4)3Fe_2(SO_4)_3  adalah ...

156

208

304

334

400

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Di ketahui massa atom relatif (Ar) C = 12; O = 16 ; Ca = 40 , maka massa 2 mol  CaCO3CaCO_3  adalah ...

100 gram

200 gram

250 gram

275 gram

300 gram

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Massa atom relatif (Ar) H = 1 dan O = 16 , tetapan Avogadro = 6,02 x  102310^{23}   , jumlah molekul air yang terdapat dalam 180 gram  H2OH_{2_{ }}O   adalah....

6,02 x  102410^{24}   molekul

6,02 x  102310^{23}  molekul

6,02 x 102210^{22}   molekul

12,04 x  102310^{23}   molekul

12,04 x  102410^{24}  molekul

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Jika 3 gram x terdapat partikel sebanyak 3,01 x  102210^{22}   atom , massa atom relatif unsur X adalah....

9.03

15

30

60

120

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Suatu senyawa mempunyai rumus empiris  CH2OCH_2O   dan massa molekul relatif 60. Jika diketahui massa atom relatif H = 1, C = 12 dan O = 16 , maka rumus molekul senyawa tersebut adalah....

HCHO

 CH3COOHCH_3COOH  

 CH3CH2OCH_3CH_2O  

 C2H4O2C_2H_4O_2  

 CH3CH2OHCH_3CH_2OH  

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Volume 7,5 gram gas NO pada suhu 0°C dan tekanan 1 atmosfer adalah….(Ar N=14;O=16)

5,6 liter

11,2 liter

22,0 liter

22,4 liter

44,0 liter

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