1.Вычислите количество вещества 18г оксида азота
2.Распределите соединения: Cu(NO₃)₂,Al(OH)₃,Ca₃(PO₄)₂,Fe₂O₃,H₃PO₄,Al₂O ₃,FrOH,HNO₂.



дам много баллов




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