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kwas+zasada->sól+woda
H₂SO₄ +2NaOH -> Na₂SO₄ + 2H₂O
2H⁺ + SO₄²⁻ + 2Na⁺ + 2OH⁻ -> 2Na⁺ + SO₄²⁻ + 2H₂O
2H⁺ + 2OH⁻ -> 2H₂O
metal+kwas->sól+wodór
2Na + H₂SO₄ -> Na₂SO₄ + H₂↑
2Na° + 2H⁺ + SO₄²⁻ -> 2Na⁺ + SO₄²⁻ + H₂°↑
2Na° + 2H⁺ -> 2Na⁺ + H₂°↑
tlenek metalu+kwas->sól+woda
Na₂O + H₂SO₄ -> Na₂SO₄ + H₂O
Na₂O + 2H⁺ + SO₄²⁻ -> 2Na⁺ + SO₄²⁻ + H₂O
Na₂O + 2H⁺ -> 2Na⁺ + H₂O
b) chlorek magnezu
kwas+zasada->sól+woda
2HCl + Mg(OH)₂ -> MgCl₂ + 2H₂O
2H⁺ + 2Cl⁻ ++ Mg²⁺ + 2OH⁻ - > Mg²⁺ + 2Cl⁻ + 2H₂O
2H⁺ + 2OH⁻ - > 2H₂O
metal+kwas->sól+wodór
Mg + 2HCl -> MgCl₂ + H₂↑
Mg° + 2H⁺ + 2Cl⁻ -> Mg²⁺ + 2Cl⁻ + H₂°↑
Mg° + 2H⁺ -> Mg²⁺ + H₂°↑
metal+niemetal->sól
Mg + Cl₂ -> MgCl₂
c) fosforan (V) baru
kwas+zasada->sól+woda
2H₃PO₄ + 3Ba(OH)₂ -> Ba₃(PO₄)₂ + 6H₂O
6H⁺+ 2PO₄³⁻ + 3Ba²⁺ + 6OH -> 3Ba²⁺ + 2PO₄²⁻ + 6H₂O
6H⁺ + 6OH⁻ -> 6H₂O
metal+kwas->sól+wodór
3Ba + 2H₃PO₄ -> Ba₃(PO₄)₂ + 3H₂↑
3Ba° + 6H⁺ + 2PO₄³⁻ -> 3Ba²⁺ + 2PO₄³⁻ + 3H₂°↑
3Ba° + 6H⁺ -> 3Ba²⁺ + 3H₂°↑
tlenek metalu+kwas->sól+woda
3BaO + 2H₃PO₄ -> Ba₃(PO₄)₂ + 3H₂O
3BaO + 6H⁺ + 2PO₄³⁻ -> 3Ba²⁺ + 2PO₄³⁻ + 3H₂O
3BaO + 6H⁺ -> 3Ba²⁺ + 3H₂O