Samarqand viloyati payariq tumani maktabning sinf o’quvchisi

Sana____________
Nazorat ishi-7
1. Oltingugurt (IV) oksidining asosli oksidlar,ishqorlar va suv bilan reaksiya tenglamasini yozing.
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2. FeS ning massa ulushi 88% bo’lgan 1 kg temir sulfiddan qancha (n.sh.) hajm vodorod sulfid olish mumkin?
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3. NO+O₂=NO₂+Q reaksiyada temperatura ortishi, bosimni kamayishi muvozanatni qaysi tomonga siljitadi?
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4. Kimyoviy muvozanat deb nimaga aytiladi?
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5. 1,8 gr alyuminiyni eritish uchun 20% li sulfat kislota eritmasidan necha gramm kerak bo’ladi?
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Baho______

Sana_______________