Reaksi kimia reduksi dan oksidasi
Quiz
•
Chemistry
•
10th Grade
•
Hard
Rochman Arif
Used 239+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Reaktan adalah
hasil reaksi
pereaksi
pelarut
larutan
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tuliskan persamaan reaksi merkuri dengan gas oksigen
HgO Hg + O2
Hg + O2 HgO
2Hg + O2 2HgO
Hg + O HgO
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Reaksi kimia dapat menimbukan berikut ini:
- terbentuknya gas
- perubahan warna
- perubahan suhu
- terbentuknya endapan
- terbentuknya larutan
semuanya benar
1,2,3&4
1,2&3
Tidak ada jawaban benar
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Faktor yang mempengaruhi reaksi kimia adalah:
- katalis
- suhu
- pengaruh ukuran zat
- konsentrasi zat
semua jawaban benar
1 & 2
1, 2 & 3
1 &3
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
manakah yang lebih cepat laju reaksinya
bongkahan garam
butiran garam
serbuk garam
garam kasar
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Proses pembuatan tembaga melalui tahapan reaksi reduksi. Tembaga (I) sulfida dipisahkan dari campurannya, lalu dialiri oksigen. Reaksi tersebut menghasilkan tembaga(I) oksida dan gas belerang dioksida.
Pernyataan yang tepat mengenai reaksi pada peristiwa tersebut adalah ....
tembaga (I) sulfida berwujud cair
koefisien tembaga (I) sulfida adalah 3
perbandingan koefisien O2 : SO2 = 3 : 2
rumus kimia tembaga (I) oksida adalah CuO
perbandingan koefisien Cu2S : O2 sama dengan Cu2O : SO2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Reaksi pembakaran pirit berlangsung menurut persamaan reaksi berikut.
FeS2(s) + O2(g) --> FeO(s) + SO2(g)
Jika disetarakan, perbandingan koefisien reaksi molekul yang terlibat dalam reaksi adalah ....
1 : 2 : 3 : 2
2 : 3 : 2 : 1
2 : 5 : 2 : 4
3 : 4 : 2 : 1
3 : 5 : 2 : 4
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