July 2022 2 4 Report
Al+H2SO4--> Al2(SO4)3+H2S + H2O коэффиценты расставлены 8AL+15H2SO4=4AL2(SO4)3+3H2S+12H2O НО Я НЕ ПОНИМАЮ КАК ЭТО ДЕЛАЕТСЯ ОТКУДА ВЗЯЛОСЬ !%?ПОМОГИТЕ ПОЖАЛЛУЙСТА
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