5- nazorat ishi 1- variant



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7 sinf 5 nazorat ishi

5- Nazorat ishi
3- variant
1. 150g suvda 30 g tuz eritilisa shu eritmani eruvchanligini aniqlang.
2. Tuzning 250 C dagi eruvchanligi 20gr ga teng bo‘lsa 300 g to‘yingan eritmada shu tuzdan necha gramm bo‘ladi?
3. To’yinmagan eritma?
4. Suvning kimyoviy xossalarini yozing.
Kompetentlikni aniqlash uchun materiallar:
5. Osh tuzini to‘yingan eritmasini qanday tayyorlash mumkin?
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Sana Ball Imzo


5- Nazorat ishi
4- variant


  1. 170 gr eritma 55% foizli bo’sa eritmada necha gram suv va necha gram tuz bor?

  2. 100 gr suvda 30 gram tuz eritildi eritmani foiz konsentratsiyasini toping?

  3. To’yingan eritma?

  4. Suvning kimyoviy xossalarini yozing.

Kompetentlikni aniqlash uchun materiallar:

  1. Osh tuzini to‘yingan eritmasini qanday tayyorlash mumkin?

  2. ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Sana Ball Imzo


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