Кремний
Presentation
•
Chemistry
•
9th Grade
•
Practice Problem
•
Medium
Сергей Мизин
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0 Slides • 8 Questions
1
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Нарисуйте схему строения атома кремния
2
Fill in the Blanks
Сумма всех элементарных частиц в ионе Si-4
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3
Multiple Choice
Электронная формула атома кремния:
1s22s22p6
1s22s22p4
1s22s22p63s23p4
1s22s22p63s23p2
4
Multiple Select
В каких из веществ степень окисления кремния +4
SiO2
Ca2Si
SiF4
SiC
5
Multiple Select
Кремний является восстановителем в реакциях с:
хлором
азотом
натрием
барием
6
Fill in the Blanks
Сумма коэффициентов в реакции
Si + NaOH + H2O = Na2SiO3 +H2
7
Multiple Select
Кремний проявляет окислительные свойства в реакциях с :
калием
магнием
серой
кислородом
8
Fill in the Blanks
Сумма коэффициентов в реакции
SiO2 +Mg = MgO +Si
равна:
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Нарисуйте схему строения атома кремния
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