August 2022 1 10 Report
ПОМОГИТЕ СРОЧНО!!!!!!!! В каком перечне даны формулы только кислотных оксидов:а)SiO2,SO3,CO2,P2O5;Б)N2O5,FeO,Na2O,BaO;В)SO2,MgO,CaO,ZnO;Г)CuO,CO2,P2O5,K2O?
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