Odpowiedź:
a) 2Al+3S->Al₂S₃
b) 2Cu+O₂->2CuO
c) 3K₂O+2H₃PO₄->2K₃PO₄+3H₂O
d) 2NaOH + SO₃-> Na₂SO₄ + H₂O
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Odpowiedź:
a) 2Al+3S->Al₂S₃
b) 2Cu+O₂->2CuO
c) 3K₂O+2H₃PO₄->2K₃PO₄+3H₂O
d) 2NaOH + SO₃-> Na₂SO₄ + H₂O