K+H₂O->?+? K₂O+H₂O->?+? Al₂O₃+H₂SO₄->?+? NaOH+H₃PO₄->?+? Al(OH)₃->?+? CO₂+HgO->?+?

Question

K+H₂O->?+?
K₂O+H₂O->?+?
Al₂O₃+H₂SO₄->?+?
NaOH+H₃PO₄->?+?
Al(OH)₃->?+?
CO₂+HgO->?+?

Answer 1

2K + 2H₂O = 2KOH + H₂↑
K₂O + H₂O = 2KOH
Al₂O₃ + 3H₂SO₄ = Al₂(SO₄)₃ + 3H₂O
3NaOH + H₃PO₄-> Na₃PO₄ + 3H₂O
2Al(OH)₃-> Al₂O₃ + 3H₂O
CO₂+HgO -> HgCO₃