
Химия кремний
Quiz
•
Chemistry
•
9th Grade
•
Practice Problem
•
Hard
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В соединениях кремний проявляет степени окисления
3,4, - 4
4,-4
2,4
2, - 4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Как называются соли кремниевой
Кислоты?
нитраты
карбонаты
силикаты
фосфаты
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какое природное вещество содержит кремний?
Криолит
Асбест
Глауберова соль
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
разновидности оксида кремния(IV):
горный хрусталь, кремень
кремень, кварц
горный хрусталь, кварц
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Примеси оксида какого металла предают речному песку желтый цвет
меди
марганца
железа
хрома
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Какого цвета простое вещество кремний?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В соединениях кремний проявляет степень окисления
2
3
+4
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