Namangan viloyati pop tumani maktabning 11 – “ ” sinf o`quvchisi

SANA:
2- Nazorat ishi
1. Odam tanasining 75% ini suv tashkil etsa, og’irligi 70 Kg bo’lgan odamda nechta molekula suv bo’ladi .
2. Vodorodga nisbatan zichligi 35 ga teng bo’lgan SO₂ va SO₃ gazlari aralashmasining 8 litr hajmini yondirish uchun qancha hajm (l, n.sh ) kislorod sarf bo’ladi.
A.1,5 B. 2,9 S. 5,0 D. 10,0
3.Gazning geliyga nisbatan zichligi 16 ga teng bo’lsa, shu gazning vodorod va havoga nisbatan zichligini toping.
4. 20 litr ammiakning normal sharoitdagi massasini, modda miqdorini, molekulalar sonini, hamda atomlar sonini toping
5.Yarim mol miqdordagi ammiak 22⁰ C va 177,32 KPa bosim ostida joylashtirilgan. Shu gazning tarkibidagi vodorod atomlari sonini hisoblang.
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