2-12
а)
P₂O₅+6KOH=2K₃PO₄+3H₂O
N₂O₃+2NaOH=2NaNO₂+H₂O
2NaOH+H₂SO₄=Na₂SO₄+2H₂O
3LiOH+H₃PO₄=Li₃PO₄+3H₂O
FeCI₃+3NaF=FeF₃+3NaCI
Ca₃N₂+6H₂O=3Ca(OH)₂+2NH₃
Ca₃N₂+6HCI=3CaCI₂+2NH₃
2NH₃+3FeO=3Fe+3H₂O+N₂
б)
(NH₄)₂Cr₂O₇=N₂+Cr₂O₃+4H₂O
NH₄NO₃+NaOH=NaNO₃+NH₃+H₂O
2Fe(OH)₃+3H₂SO₄=Fe₂(SO₄)₃+6H₂O
2H₃PO₄+3Mg(OH)₂=Mg₃(PO₄)₂+6H₂O
Ca(OH)₂+H₃PO₄=CaHPO₄+2H₂O
Ca(OH)₂+2H₃PO₄=Ca(H₂PO₄)₂+2H₂O
AI(OH)₃+3NaOH=Na₃[AI(OH)₆]
6P+5KCIO₃=5KCI+3P₂O₅