Вкажіть групу речовин, з якими реагують нерозчинні основи:
а)H2O; HCl; CO2;Н3РO4
б)H2; H2SO4;SO2; BaSO4
в)HBr; Mn(OH)2; O2;KOH
г)HCl; H2SO4 ;HNO3; H2SОз
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