Kimyo fanidan

 
 

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6 
4-Nazorat ishi 
Mavzu:Kremniy 
Nazorat shakli:masala yechish va mashqlar yechish. 
I-variant 
1.Kremniyning fizik xossalarini yozing. 
2.3,2gr silan olish uchun necha gr magniy silidsid xlorid kislota bilan reaksiyaga 
kirishadi? 
3.Si ning oxirgi elektronini to’rtta kvant sonlarini yozing. 
Kompetentlikni aniqlash uchun materiallar: 
4.Qumdagi kremniy va kislorodning massa nisbatini yozing. 
5.Yurtimizdagi qaysi shaharlarining binolarida sopoldan tayyorlangan naqshlarni 
uchratamiz?
II-variant. 
1.Kremniyning olinish reaksiya tenglamasini yozing. 
2.Kremniyning elektronlarining necha %ini sharsimon elektronlar tashkil etadi? 
3.6,4gr silan yonganda necha gr kremniy (IV)-oksid hosil bo’ladi? 
Kompetentlikni aniqlash uchun materiallar: 
4.Shishani qnday turlarini bilasiz? 
5.Silandagi kremniy va vodorod atomlar soni nisbatini toping. 
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