9-sinf kimyo fanidan nazorat ishi daftari 2025-2026-yil uchun maxsus
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o’zbekiston respublikasi namangan viloyati uychi tumani maktabgacha va maktab ta’lim vazirligiga qarashli 19-sonli umumiy o’rta maktabi 9 - “ ” sinf o’quvchisi ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– ning kimyo fanidan nazorat ishi daftari 1- nazorat ishi. sana mavzu: takrorlash . nazorat shakli:test 1.sulfat va nitrat kislotalarini va zar suvini olinishini yozib qoldirgan olim kim? a)jobir ibn hayyom s)abu ali ibn sino b)gippokrat d)abu nasr farobiy 2.elektronni massasi nechaga teng? a)1,6*10-19kg b)9,1*10-31kg s)6,02*1023 kg d)19,93*10-27kg 3.ionlanish energiyasi nima? a)elektronlarning atomdan ajralishi uchun zaruriy energiya miqdori. b)neytral atomga bitta electron birikkandagi energiya. s)elektronbirikkandagi energiya. d)bir element atomi boshqa element atomini bir...
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