9- mock test kimyo
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telegram kanalimiz: @shamseducation +998945466007 9-milliy sertifikat imtihon savollari 1. quyidagi o‘zgarishlardan nechtasi kimyoviy o‘zgarish hisoblanadi? — qog‘ozning yonishi — natriy metallining suvga tashlanishi —muzning erishi —tuxumning aynishi —yod qattiq holatining sublimatlanishi —spirtning muzlashi —yog‘li bo‘yoqning qotishi —bargning sarg‘ayishi —suvning elektrolizi a) 5 b) 7 c) 8 d) 6 2. bir xil sharoitda ikkita turli hajmli idishlarda x2o5 va c2h6 gazlari joylashtirilgan gazlarning berilgan massalaridan foydalanib x ni massasini toping. a) 35 b) 2,1 c) 2,4 d) 14 3. 4,48 litrli idishga 3,2 gramm ch4 gazi, 0,6 mol atomlari bo‘lgan co2 gazi va 0,1 mol he gazi solingan. harorat 273 ° c bolganda idishdagi gazlarning umumiy bosimi qancha atm bo'ladi? a) 0,5 b) 1 c) 5 d) 2,5 telegra...
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