
Latihan soal
Authored by Ghinaa mufiidah Wati
Chemistry
University
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10 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Serbuk magnesium yg massanya 3 gram direaksikan tepat habis bereaksi dengansejumlah serbuk belerang menghasilkan senyawa magnesium sulfida yg massanya 7 gram.Massa serbuk belerang yg telah bereaksi adalah....
10 gram
7 gram
4 gram
3 gram
1 gram
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Di dalam senyawa CaS ,perbandingan massa Ca:S=5:4. Jika 10 gram kalium direaksikan dengan 9 gram serbuk belerang,maka massa CaS yg dihasilkan sebanyak....
9 gram
9,5 gram
10 gram
18 gram
19 gram
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Senyawa tembaga (II) oksida memiliki rumus kimia....
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Perhatikan reaksi redoks berikut!
MnO4— + 5Fe2+ + 8H+ → Mn2+ + 5Fe3+ + 4H2O
Zat yang bertindak sebagai oksidator adalah ....
a. MnO4—
b. Fe2+
c. Mn2+
d. Fe3+
e. H2O
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Sejumlah logam besi dipijarkan dengan 3,2 gram belerang menghasilkan 8,8 gram senyawa besi (II) sulfida, berapa gram logam besi yang bereaksi?
12 gram
5,6 gram
56 gram
28,16 gram
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Setarakan reaksi berikut.
N2 (g) + H2 (g) --> NH3 (g)
urutan koefisien yang benar adalah ....
1, 2 dan 3
3, 2 dan 1
1, 3 dan 2
3, 1 dan 2
2, 3 dan 1
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Jika di dalam senyawa FeS perbandingan massa Fe : S = 7 : 4, maka untuk menghasilkan 4,4 gram senyawa FeS diperlukan Fe dan S berturut-turut?
2,8 dan 1,6 gram
2,9 dan 1,5 gram
1,6 dan 2,8 gram
2,4 dan 2,0 gram
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