VI B guruh elementlariga qaysilar kiradi?, B,Al,In, Cr,Mo,Wo, PbCrO4 krokoitni qaytarib xrom olishni kim aniqlagan?, L.Vokelen, Karl Sheyele, Rang ,boʻyoq qaysi elementning maʼnosini anglatadi?, Mo, Cr, Fe(CrO2)2-?, Xromit, Krokoit, PbCrO4-?, xromit, krokoit, Boʻri shlak qaysi elementning maʼnosini anglatadi?, Volfram, Xrom, Molibdenni kim kashf qilgan?, Vokelen, Karl Sheyele , MoO3ni H2 bilan qaytarib molibden olgan olim kim?, Berselius , Karl Sheyele , Molibdenit-?, MoS2, PbMoO4, PbMoO4 nomi ?, Molibdenit, Vulfenit, Molibdenning olinish reaksiyasi?, Cr2O3+Al=Cr+Al2O3, MoO3+3H2=Mo+3H2O, Xromning olinish reaksiyasi?, Cr2O3+2Al=Cr+Al2O3, MoO3+H2=Mo+H2O, Sheyele va aka -uka Elyuarlar qaysi elementni kashf etishgan?, Volfram, Xrom, Ferberit-?, FeWO4, PbWO4, MnWO4 ning nomi?, Ferberit, Gyubnerit, Sheyelit-?, FeWO4, CawO4, Ferronixrom nima?, Fe(CrO2)2, Tarkibida 60 foiz Cr boʻlgan aralashma, Ferronixrom qanday olinadi?, Fe(CrO2)2+C=Fe+Cr+CO, Cr2O3+Al=Al2O3+Ce, Xromning kislotalari qaysilar?, HCrO2, H2CrO4, H2CR2O7 , H2SO4,H2S, H2SO3 , CrO xrom II oksidi qanaqa rang?, Qora , Koʻk, Metaxromit kislota qaysi?, H2Cr2O7, HCrO2, Cr2O3 xrom III oksidi qanday xossaga ega?, Toʻq yashil rangli ,amfoter xossaga ega, Qora rangli ,asos xossasiga ega , Dixromat kislota ?, H2CrO4, H2Cr2O7, CrO3 xrom VI oksidi qanday xossaga ega?, Asos xossaga, Kislotali xossaga, Xrom II oksidining olinishi?, 2Cr+O2=2CrO, 4Cr+O2=2Cr2O3, Cr2O3 qanday olinadi?, 2Cr+O2=2CrO, 4CrO+O2=2Cr2O3, Xrom II gidroksidi qanday xossaga ega?, Sariq rangli,asos xossasiga ega, Toʻq yashil kristal xossaga ega, Xromning qaysi birikmasi sariq rangli choʻkma?, Cr(OH)3, Cr(OH)2, Xromat kislota?, H2CrO4, H2CrO7, Cr(OH)2 qanday olinadi?, CrO+O2=Cr2O3, CrCl2+NaOH=Cr(OH)2+NaCl.
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