Окислительно-восстановительные реакции
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Hard
Olga Vorochevskaya
Used 33+ times
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36 questions
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1.
MULTIPLE SELECT QUESTION
1 min • 1 pt
В каких случаях окислителем и восстановителем служителя один и тот же элемент?
Br 2 + 2HI = I 2 + HBr
SO 2 + H 2 O 2 = H 2 SO 4
2NO 2 + H 2 O = HNO 3 + HNO 2
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
только восстановителем в реакциях может быть
Бром
Калий
Азот
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
в реакции H 2 S + I 2 = S + 2HI восстановителем является
H 2 S
I 2
S
2HI
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Роль фосфора в окислительно-восстановительной реакции: P 2 O 5 + 3K 2 O = 2K3PO4
Окислитель
Восстановитель
И окислитель, и восстановитель
Ни окислитель, ни восстановитель
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Fe 2 O 3 + 3H 2 = 2Fe + 3H 2 O степень окисления у окислителя
0
+1
+2
+3
6.
MULTIPLE SELECT QUESTION
1 min • 1 pt
К окислительно-воссстановительным относится реакция
2Al + 6H 2 O = 2Al(OH) 3 + 3H 2
МgО + СО 2 = МgСО 3
SO 3 + H 2 O = H 2 SO 4
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
в реакции FeO + H2 ⟶ Fe + H2O элемент, который повысил степень окисления
Fe
O
H
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