4K+O2 — 2k2o
K2O + H2O — 2KOH
4P + 5O2(изб.) = 2P2O5
P2O5 + 3H2O = 2H3PO4
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4K+O2 — 2k2o
K2O + H2O — 2KOH
4P + 5O2(изб.) = 2P2O5
P2O5 + 3H2O = 2H3PO4