1-Nazorat ishi

To’ldiruvchi so’rov bali ________
2-NAZORAT ISHI


Mavzu: Atom va molekulalar uyushmasi. Molekular va nomolekular tuzilishli moddalar.
Sof modda aralashmalar, oddiy va moddalar, fizik- kimyoviy tenglamalar mavzularini umumlashtirish.
Nazorat shakli:Yozma ishi

I. variant

1. Oltingugurt kukuni shaker, temir qirindisinidan ibrat aralashmani tarkibiy qismlarga ajratish ketma-ketligini qisqacha izoh bilan yozing.
2. Quyidagi formulalarni valentlik asosida to’g’rilab yozing:

I III VII III I III IV II VI

CuO CrO CIO AIO HgO KO NH CO HS SO


3. Xlorning valentligi besh ekanligini bilgan holda uning kislorod bilan hosil qilgan birikmasining formulasini yozing va formula asosida quydagilarni aniqlang:
A) nisbiy molecular massasini;
B) 0,5 mol modda massasini;
C) 0,25 mol moddadagi molekulalar sonini.
4. Quydagi o’zgarishlarni fizik- kimyiviy o’zgarishlarga bo’lib alohida-alohida yozing:
suvning bug’lanishi, ko’mirning yonishi, temirning zanglashi, suvning muzga aylanishi,
shakarning erishi, suvning parchalanishi, qog’ozning yonishi, temirning erishi, ko’mirning
maydalanishi, oltingugurtning yonishi.
5. Quyidagi reaksiya tenglamalarini tugallang va koeffitsiyentlar tanlang:
V III
P+ O₂ = N₂+ H₂ =
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