Reaksi reduksi berdasarkan pengikatan dan pelepasan oksigen: Pilih dari opsi berikut: a. 2BaO2 → 2BaO + O2, b. 4Fe + 3O2 → 2Fe2O3, c. Mg + ½ O2 + MgO, d. 4Na + O2 → 2Na2O, e. 2Cl2 + 3O2 → 2Cl2O3
Elektrokimia

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Chemistry
•
12th Grade
•
Hard
CHOLISOH CHOLISOH
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19 questions
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1.
FLASHCARD QUESTION
Front
Back
2BaO2 → 2BaO + O2
2.
FLASHCARD QUESTION
Front
Identify the oxidation reactions from the following equations:
1) S + O2 → SO2
2) Al2O3 → Al + O2
3) Cu + O2 → CuO
4) Br2 + 2e → 2 Br
5) Fe + O2 → Fe2O2
Back
1, 3, and 5
3.
FLASHCARD QUESTION
Front
Bilangan oksidasi unsur S dalam senyawa Na2S2O3 adalah
Back
+2
4.
FLASHCARD QUESTION
Front
Bilangan oksidasi atom S yang paling tinggi terdapat pada senyawa:
- SO2
- S2O32-
- S4O62-
- SO42-
- H2S
Back
SO42-
5.
FLASHCARD QUESTION
Front
Gas nitrogen monoksida merupakan gas yang tidak berwarna dan beracun. Gas tersebut dapat dihasilkan dari reaksi asam sulfida dengan asam nitrat, dengan persamaan reaksi: 3H2S(g) + 2HNO3(aq) + 6H+(aq) → 2NO(g) + 2S(s) + 4H2O(l) zat yang merupakan oksidator dari persamaan reaksi di atas adalah . . . . Options: H2S, HNO3, NO, S, H2O
Back
HNO3
6.
FLASHCARD QUESTION
Front
Pembakaran kembang api merupakan suatu peristiwa reaksi redoks yang reaksinya dapat ditulis sebagai berikut: KClO3(s) + S(s) + H+(aq) → KCl(s) + SO2(g) + H2O(l) Zat yang berperan sebagai reduktor adalah . . . . Options: KClO3, S, H+, KCl, SO2
Back
S
7.
FLASHCARD QUESTION
Front
Diketahui reaksi: aZn + bNO3- → cZn2+ + NH4. Jika persamaan reaksi redoks disetarakan, harga koefisien a, b dan c masing-masing adalah?
Back
4, 1, 4
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