Question

ионное уравнение или ОВР
$SO_{2} + 2NaOH = Na_{2} SO_{3}+ H_{2} O$

Answer 1

SO₂ + 2NaOH = Na₂SO₃ + H₂O
SO₂ + 2Na⁺ + 2OH₋ = 2Na⁺ + SO₃²⁻ + H₂O
SO₂ +  2OH₋ = SO₃²⁻ + H₂O