Очень важно!! Даю 20б
-Серед наведених формул укажіть ті, які належать йонним речовинам:BаCL2,S03,СH4,Мg(0H)2,HN03, Zn0,C2Н50H,AL(N03)3,CuSO4,HCL,K 2S. Ca0,Mg3(PO4)2Naf,CH3COONa,Na20,Сa(0h)2,Bacl2,F2
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