Mavzu: modda va uning xossalari

Reaktivlar: rux granulalari, xlorid kislota HC1 (1:1 suyultirilgan), CuO- mis(II)-oksidi.
Eritma tayyorlash: xlorid kislotaning 1:1 nisbatdagi eritmasini tayyorlash uchun 100 ml li polipropilen silindrning 50 ml belgisigacha distillangan suv quyiladi va ustiga 100 ml belgisigacha xlorid kislotaning konsentrlangan eritmasidan ohistalik bilan quyiladi va shisha tayoqcha bilan aralashtiriladi.

Ishni bajarish tartibi:
1. Toza quruq P-16 probirkasiga oz miqdordagi mis(II)-oksidi (CuO) solinadi va probir-kani laboratoriya shtativiga tubini og'ziga nisbatan yuqoriroq qilib o'rnatiladi va keyin quruq yoqilg'i bilan qizdiriladi.

2. 
   Bunda reaksiya natijasida hosil bo'lgan suv tomchilari oqib tushadi.
   

2. 
   Gaz olish asbobi laboratoriya shtativiga o'rnatiladi. Rux granulalarini rezina vtulka ustiga qo'yib probirkaga joylashtiriladi, voronka orqali xlorid kislota eritmasi quyiladi.
   
3. 
   Gaz olish asbobining gaz o'tkazuvchi nayining uchiga uzun shisha nay ulanib, bu shisha nayning uchi probirka tubidagi mis (ll)-oksidi kukuni ustiga o'rnatiladi.
   
4. 
   Mis (Il)-oksidi solingan probirka ichki devorlarida suv tomchilari hosil bo'ladi va probirka tubida qizg'ish rangli metall ajrala boshlaydi.
   
5. 
   Sodir bo'lgan hodisalar mohiyati tushuntiriladi va kimyoviy reaksiya tenglamasi yozib olinadi.
   

Nazorat uchun savollar:

1. 
   Vodorod yordamida yana qaysi metallni uning oksididan qaytarish mumkin?
   
2. 
   Qaytaruvchilar deb nimaga aytiladi?
   

3.Eng muhim qaytaruvchilar vodorod va metallar deb aytish mumkinmi? Javobingizni isbotlab bering
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