Степень окисления и валентность
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Hard
Валерия Сторожик
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23 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Азот проявляет степень окисления +5 в следующем соединении:
NH3
N2O
NaNO2
KNO3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Высшая валентность серы равна:
III
IV
VI
VIII
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
В соединениях Na2CO3 и CH4 углерод проявляет степени окисления:
+4 и -4
+4 и -8
+2 и -4
-4 и +3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В каком соединении азот проявляет степень окисления +3?
N2
N2O3
NaNO3
KNO2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какая степень окисления азота в соединении NO2?
+1
+3
+4
+2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какая валентность серы в соединении SO3?
II
IV
VI
VIII
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какую степень окисления проявляет азот в соединении NH3
-3
+3
+5
+1
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