Tuman maktab 8 sinf o‘quvchisi

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15

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5- Nazorat ishi Yozma ish

1-variant

1. Quyida keltirilgan moddalarni bosqichli dissosiyatsiyalanish tenglamasini yozing:

H₂SO₄, Ca(OH)₂, NaHCO₃, MgOHCl

2. Berilgan tuzlardan qaysilari gidrolizga uchraydi? Gidrolizga uchraydiganlarini muhitini aniqlang va gidrolizlanish reaksiya tenglamalarini yozing: Na₂CO₃, AlCl₃, NaCl.

3. Berilgan ion almashinish tenlamasini molekulyar, to’la ionli va qisqa ionli shaklda yozing.

a) CuSO₄ + KOH → b) Na₂CO₃ + HCl→

4. Magniy sulfatni dissosiyatlanish darajasi 12% bolib, elektrolitning 24 tasi ionlarga ajralsa, eritilgan molekulalar

sonini toping.

2-variant

1. Quyida keltirilgan moddalarni bosqichli dissosiyatsiyalanish tenglamasini yozing:

H₂SO₃, Ba(OH)₂, FeOH(NO)₃, NaHSO₃,

2. Berilgan Tuzlardan qaysilari gidrolizga uchraydi? Gidrolizga uchraydiganlarini muhitini aniqlang va reaksiya tenglamalarini yozing: K₂CO-₃. ZnCl₂, Na₂SO₄.

3. Berilgan ion almashinish tenlamasini molekulyar, to’la ionli va qisqa ionli shaklda yozing

a)FeCl₃ + KOH→ b) NaOH + H₂SO₄→

4. Kaliу nitratni dissosiyatlanish darajasi 12.5% bo’lib, elektrolitning 15 tasi ionlarga ajralsa, eritilgan molekulalar sonini toping.

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