Кремний и его соединения
Quiz
•
Chemistry
•
1st Grade
•
Medium
Разиля Шарифуллина
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Из предложенных соединений выберите формулу кремниевого ангидрида:
SiО3
SiО2
SiО
SiН4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Из природных соединений кремния наиболее распространен
Кремнезем
Силан
Кремниевая кислота
Все вышеперечисленные
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Содержание кремния на Земле:
50%
20%
27%
2%
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
При н.у. кремний реагирует с:
О2
F2
Br2
Cl2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Формула кремния
S
Mn
K
Si
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Из предложенных соединений выберите формулу силицида магния:
MgSi
Mg2Si
Mg3Si
MgSi2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Как получают кремний:
разложением силикатов
восстановлением из оксида кремния (с Mg)
разложением кремниевой кислоты
Все ответы верны
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