
Степень окисления и валентность
Authored by Екатерина Чугунова
Chemistry
4th Grade
Used 4+ times

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6 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Степень окисления +3 азот проявляет в каждом из двух веществ:
NH4Cl и NaNO2
NaNO3 и NO2
N2O4 и NH3
KNO2 и N2O3
2.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Высшую степень окисления фосфор проявляет в соединении, формула которого
Ca3P2
K3PO4
P2O3
PH3
3.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Степень окисления серы в соединении K2S2O7 равна
–1
0
+4
+6
4.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Степень окисления –3 азот имеет в каждом из двух соединений:
NF3 и NH3
NH4Cl и N2O3
NH4Cl и NH3
Mg3N2 и NF3
5.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Постоянную степень окисления в соединениях проявляет
медь
водород
хлор
фтор
6.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Наименьшую степень окисления сера проявляет в соединении
K2S
Na2SO4
K2SO3
SO2
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