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chieuanh1412
2 năm trước
dãy nào sau đây gồm tát cả các chất là axit có oxi a HCL,NaOH, H2SO4 b,H3PO4, HNO3, H2SO4 c,HCL,HNO3 , H2SO4 d,HNO3, CaCL2, Ba(OH)2 câu 2 dãy các chất nào sau đây gồm axit không có oxi a CH4,HCL, HF b HCL ,H2S,NH3 cHCL, HF, HBr d HCL, HBr, H2SO4 CÂU 3 Dãy nào sau đây gồm tất cả các chất là bazơ tan aKOH, Ca(OH)2,NaOH b CaO,CaCL2 ,Ba(OH)2 c KOH, NAOH,H2SO4 d NaOH, Ca(OH)2 , Mg(OH)2
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