Odpowiedź:
d) CaO + 2HNO₃ --> Ca(NO₃)₂ + H₂O
e) K₂O + H₂SO₄ --> K₂SO₄ + H₂O
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Odpowiedź:
d) CaO + 2HNO₃ --> Ca(NO₃)₂ + H₂O
e) K₂O + H₂SO₄ --> K₂SO₄ + H₂O