August 2022 1 16 Report
Сравните массовые доли указанных элементов в веществах и поставьте знак <,> или =;
а)w(S)so3 ... w(S)so2;
б)w(O)co2 ... w(O)sio2;
в)w(Cl)cacl2 ... w(Cl)hci *
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