NaOH+BaO Ca(OH)2+KOH NaOH+H2S Ba(OH)+HNO3 H2S+PuO10 HNO3+SrO

NaOH+BaO-->nie zachodzi Ca(OH)2+KOH-->nie zachodzi 2NaOH+H2S-->Na2S+2H2O Ba(OH)2+2HNO3-->Ba(NO3)2+2H2O H2S+PuO10-->nie zachodzi 2HNO3+SrO-->Sr(NO3)2+H2O