
PART2-METODEBILOKS
Interactive Video
•
Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Hard
Juliana Julay
FREE Resource
17 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berapakah bilangan oksidasi (biloks) Mn dalam ion MnO4-?
+2
+4
+6
+7
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berapakah bilangan oksidasi (biloks) C dalam ion C2O4^2-?
+2
+3
+4
+6
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berapakah koefisien MnO4- dalam persamaan reaksi redoks yang setara menggunakan metode biloks?
1
2
3
4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berapakah koefisien H2O dalam persamaan reaksi redoks yang setara menggunakan metode biloks?
1
2
3
4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berapakah perubahan bilangan oksidasi Cr dalam reaksi CrO4^2- → Cr2O3?
Dari +6 menjadi +3 (reduksi 3 elektron)
Dari +6 menjadi +3 (reduksi 6 elektron)
Dari +3 menjadi +6 (oksidasi 3 elektron)
Dari +3 menjadi +6 (oksidasi 6 elektron)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berapakah perubahan bilangan oksidasi Fe dalam reaksi Fe(OH)2 → Fe(OH)3?
Dari +2 menjadi +3 (oksidasi 1 elektron)
Dari +2 menjadi +3 (oksidasi 2 elektron)
Dari +3 menjadi +2 (reduksi 1 elektron)
Dari +3 menjadi +2 (reduksi 2 elektron)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apa persamaan reaksi kimia setara untuk CrO4^2- + Fe(OH)2 → Cr2O3 + Fe(OH)3 dalam suasana basa menggunakan metode perubahan bilangan oksidasi?
2CrO4^2- + 6Fe(OH)2 + 5H2O → Cr2O3 + 6Fe(OH)3 + 4OH-
CrO4^2- + 3Fe(OH)2 + 2H2O → Cr2O3 + 3Fe(OH)3 + 2OH-
2CrO4^2- + 6Fe(OH)2 → Cr2O3 + 6Fe(OH)3
2CrO4^2- + 6Fe(OH)2 + 4OH- → Cr2O3 + 6Fe(OH)3 + 5H2O
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