Выбери вещества, с помощью которых можно осуществить превращения:

1. Ba(OH)2→BaSO3
SO2
H2SO3
Li2SO4
SO3
Na2SO3

2. Fe(OH)2→Fe3(PO4)2
H3PO4
Na3PO4
Ag3PO4
P2O3
P2O5
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