August 2022 1 2 Report
выберите формулу для расчета массовой доли кислорода в веществе: AI2O3и выполните расчеты по этой формуле: Ар (О) 3Ар (О) A) w (О) = ---------- Б) w (О) = --------- Mr ( AI2O3) Mr(AI2O3) Mr(AI2O3) Mr(AI2O3) В)w(O)=---------- Г)w(O)=---------- 2Ar(O) 3Ar(O)
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