
UH hukum dasar kimia dan stoikiometri
Quiz
•
Chemistry
•
1st Grade
•
Hard
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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