August 2021 0 12 Report
Укажите уравнение реакции ионного обмена: А. 2Al + 6HCl = 2AlCl3 + 3H2
Б. 2NaNO3 = 2NaNO2 + O2
В. Аl2(SO4)3 + 6KOH = 2Al(OH)3 + 3K2SO4
Д. 3Ba + N2 = Ba3N2
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