Срочно нужно помогите
Реакция, характерная для кислотных оксидов:
а) 2SO2 + O2 = 2SO3
б) SO2 + 2H2S = S + 2H2O
в) SO2 + KOH = KHSO3
г) SO2 + 2HNO3 конц. = H2SO4 +2 NO2
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