Расставьте коэффициенты в следующих схемах реакций:

P + O2 = P2O3

Li + N2 = Li3N

Zn + HCl = ZnCl2 +H2

Fe(OH)3 + HCl = FeCl3 + H2O

BaCl2 + Al2(SO4)3 = AlCl3 + BaSO4
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