10 класс, повторение 9

Quiz
•
Chemistry
•
10th Grade
•
Hard
Мария Шачонок
Used 5+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Укажите формулу мела
Са(ОН)2
CaCO3
CaSO4
NaCl
2.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Выберите формулу оксида серы (IV)
SO3
P2O5
SO2
SiO2
3.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Степень окисления кислорода в оксиде натрия равна
+2
0
+4
-2
4.
MULTIPLE SELECT QUESTION
45 sec • 2 pts
Выберите формулы катионов
Ba2+
Mg2+
CO32-
CL-
5.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Укажите формулу БЕСКИСЛОРОДНОЙ , ДВУОСНОВНОЙ кислоты
HCL
H2S
H2SO4
NaCL
6.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Что получится в результате реакции
Кислота + основание = .... + ....
соль + вода
соль + водород
новая кислота + вода
новое основание + вода
7.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Верно ли, что процессы восстановления и окисления всегда осуществляются одновременно?
Верно
Неверно
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