UH hukum dasar kimia dan stoikiometri

UH hukum dasar kimia dan stoikiometri

1st Grade

10 Qs

quiz-placeholder

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UH hukum dasar kimia dan stoikiometri

UH hukum dasar kimia dan stoikiometri

Assessment

Quiz

Chemistry

1st Grade

Hard

Created by

Uswatun Hasanah

Used 16+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Berikut ini manakah persamaan reaksi yang setara

C2H4 + O2 --> CO2 + H2O

C2H4 + O2 --> 2CO2 + H2O

C2H4 +2 O2 --> CO2 + 2H2O

C2H4 + 2O2 --> CO2 + H2O

C2H4 + 3O2 --> 2CO2 + 2H2O

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

"Massa zat sebelum reaksi sama dengan hasil reaksi" merupakan bunyi hukum...

Hukum kekekalan massa(Lavoisier)

Hukum perbandingan tetap

Hukum perbandingan berganda

Hukum perbandingan volume

Hipotesis avogadro

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Reaksi pembakaran gas CH4 :

CH4 + O2 --> CO2 + H2O (belum setara)

Peebandingan volume gas yang bereaksi dan gas hasil reaksi pada keadaan setara adalah..

1 : 2 : 1 : 1

2 : 1 : 2 : 1

1 : 2 : 1 : 2

1 : 1 : 2 : 2

1 : 2 : 2 : 1

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Bila massa atom relatif tembaga(Ar Cu) = 64, maka massa dari 1,204 x 10^24 atom adalah...gram ( n= gr/Ar = N/6,02 x 10^24)

1,28

64

640

12,8

128

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Bila massa atom relatif tembaga(Ar Cu) = 64, maka massa dari 1,204 x 10^24 atom adalah...gram ( n= gr/Ar = N/6,02 x 10^24)

1,28

64

640

12,8

128

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Massa molekul relatif (Mr) dari senyawa kalsium fosfat Ca3(PO4)2 adalah...(Ar Ca = 40, P=31, O=16)

365

310

215

175

135

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Sejumlah sampel zat mengandung 11,2 gr Fe dan 4,8 gr O.tentukan rumus empirisnya...(Ar Fe = 56 , O= 16)

FeO

FeO3

Fe2O3

Fe2O

Fe2O2

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