К оксидам относятся
Оксиды. Степень окисления

Quiz
•
Chemistry
•
8th Grade
•
Hard
Jelena Rodionova
Used 3+ times
FREE Resource
8 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
NaCl
CH3OH
SO3
CaSO3
Al2O3
2.
MULTIPLE SELECT QUESTION
45 sec • 2 pts
Степень окисления hapnik в соединениях всегда ....., т.к. атом ............
-II
O
II
принимает 2 электрона
отдает 2 электрона
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Na2O - это
оксид динатрия
оксид натрия
оксид натрия (I)
оксид натрия (II)
нет верного ответа
4.
MULTIPLE SELECT QUESTION
30 sec • 2 pts
Степень окисления водорода в соединениях равна ....., т.к. атом .......
-I
O
I
принимает электрон
отдает электрон
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
гептаоксид дихлора - это
Cl2O6
Cl6O2
Cl2O5
Cl2O7
Cl7O2
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Степень окисления марганца в соединении MnO2 равна ....
1
2
3
4
5
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
К реакции горения относится
Сa + S= CaS
CaCO3 + O2= CaO + CO2
H2O2 = H2 + O2
Ca + HCl= CaCl2 + H2
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В реакции K2Cr2O7 = K2CrO4 + O2+ Cr2O3
продуктов реакции
1
2
3
4
5
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