Углерод и кремний
Quiz
•
Chemistry
•
12th Grade
•
Hard
Ксюша Кармацкая
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
При гидролизе карбида кальция выделяется газ:
ацетилен
метан
пропан
углекислый
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Углерод может реагировать с:
HNO3 конц
H3РO4 конц
HCl конц
HF конц
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Выбери все вещества, которые образуются при разложении карбоната натрия:
СО2
Na2O
NaHCO3
он не разлагается
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
В реакции растворов AlCl3 и K2CO3 образуются (выбери несколько):
Al(OH)3
Al2(СO3)3
KCl
CO2
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
В структуре какого вещества есть неполярные ковалентные связи (может быть несколько):
оксид кремния
карбид кальция
алмаз
графит
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
При гидролизе силицида магния образуются (выбери несколько):
Mg(OH)2
MgH2
SiH4
H2SiO3
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
В возбужденном состоянии у кремния электронная конфигурация внешнего слоя описывается:
2s22p2
3s23p2
3s13p3
3s23p4
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