Mavzu: Vodorodning olinishi. Darsning maqsadi: Ta`limiy maqsad



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Bog'liq
7- sinf III chorak yangi konspekt 2019-2020

Yangi darsning bayoni.
6-Nazorat ishi.
Mavzu: Suv–eng yaxshi erituvchi. Eruvchanlik. Eritmalar va ularning konsentratsiyalari. Metallar va metallmaslar. Oksidlar. Asoslar.
Nazorat shakli:Masala yechish
I-variant.
1.300gr 10%li eritmadagi erituvchi va eruvchi moddalarning massalarini toping.
2.500ml 0,2m eritma tayorlash uchun necha gr natriy karbonat Na2CO3kerak?
3.50gr natriy xlorid NaCl tuziga 150gr suv qo’shildi. Hosil bo’lgan eritmaning massa ulushini (%)da hisoblang.
Kompetentlikni aniqlash uchun materiallar:
4.Qanday eritmalar tayyorlay olasiz?
5.Hayotingizda ko’rgan metallaringizni sanab bering?
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