Toshkent viloyati quyi chirchiq tumani maktabining 7 – “ ” sinf o`quvchisi
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- Bu səhifədəki naviqasiya:
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7- Nazorat ishi
Mavzu: Suvning tarkibi. Xossalari tarqalishi, ahamiyati, ishlatilishi.ifloslanishi. 1- variant 1. 2 mol suvda nechta vodorod atomi bor? 2. 20 g vodorod to’la yonishi uchun necha gramm va qancha hajm O2 sarflanadi? 3. Suvning kimyoviy xossalarini yozing. Kompetentlikni aniqlash uchun materiallar: 4.Nima uchun qish faslida muz suv yuzida qalqib yuradi? 5.Suv havzalarini tozaligini saqlash uchun qanday takliflar bera olasiz? ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Sana Ball Imzo Sana Ball Imzo Yüklə 55,94 Kb. Dostları ilə paylaş:
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