Helyes: O2, H2O, CaCO3, HCl, NaCl, CO2, Cl2, CO, SO2, H2, MgO, CaO, N2, CH4, Al2O3, Helytelen: Na2Cl2, CO4, CH, H2Cl2, C1H1, HCl2, O4, Ca3O, AlO3, HOHO, N3, CH2, SO, HO2, LiO,

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