penyetaraan persamaan reaksi
Quiz
•
Chemistry
•
10th Grade
•
Hard
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33 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Antiseptik yang dikenal dengan nama karbol mengandung bahan aktif senyawa fenol yang mempunyai rumus kimia C6H6O. Pernyataan berikut yang tidak benar adalah....
Untuk menyatakan 5 molekul fenol dituliskan dengan 5 C6H6O.
Setiap molekul fenol tersusun dari 6 atom karbon, 6 atom hidrogen, dan 1 atom oksigen.
Rumus kimia fenol di atas merupakan rumus molekul sekaligus rumus empiris.
Penulisan rumus empiris dari fenol yang benar adalah (CH3)O.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reaksi pembakaran gas butana (C4H10) dituliskan dengan persamaan reaksi berikut.
aC4H10(g) + bO2(g) --> cCO2(g) + dH2O(l)
setelah disetarakan maka berlaku....
a = c + d
b = c + d
b = d
b = c + d
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan persamaan reaksi berikut.
xN2(g) + yH2(g) --> zNH3(g)
Apabila persamaan reaksi telah disetarakan, nilai x, y, dan z adalah....
1, 2, dan 3
1, 3, dan 4
1, 3, dan 2
3, 2, dan 1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Di antara persamaan reaksi berikut yang sudah setara adalah....
2H2S(g) + 3O2(g) --> 2H2O(l) + 2SO2(g)
CH4(g) + O2(g) -> CO2(g) + 2H2O(l)
C2H6(g) + 3O2(g) -> 2CO2(g) + H2O(l)
Fe2O3(s) + C(s) -> 2Fe(s) + 3CO(g)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan persamaan reaksi berikut.
aH2(g) + bO2(g) --> cH2O(l)
Apabila persamaan reaksi telah disetarakan, nilai a, b, dan c adalah....
1, 2, dan 2
1, 2, dan 3
1, 3, dan 2
2, 1, dan 2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan persamaan reaksi berikut.
aMnO2(s) + bHCl(aq) --> cMnCl2(aq) + dH2O(l) + eCl2(g)
Apabila persamaan reaksi telah disetarakan, nilai a, b, c, d dan e adalah....
1, 4, 1, 2, dan 1
1, 2, 1, 4, dan 1
1, 4, 2, 3, dan 2
2, 1, 1, 4, dan 2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan persamaan reaksi berikut.
aFe2O3(s) + bCO(g) --> cFe(s) + dCO2(g)
Apabila persamaan reaksi telah disetarakan, nilai a, b, c, dan d adalah....
1, 2, 3, dan 3
1, 3, 2, dan 3
3, 3, 2, dan 1
3, 2, 2, dan 4
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