Which of the following substances does the sodium hydroxide solution react with: barium oxide, calcium, sulfur oxide (VI), copper (II) chloride? Make equations of possible reactions in molecular and ionic form.
2NaOH + SO₂ = Na₂SO₃ + HO₂; 2Na ++ 2OH- + SO₃ = Na₂SO₃ + H₂O
2NaOH + CuCl₂ = 2NaCl + Cu (OH) ₂; 2Na ++ 2OH- + Cu2 ++ 2Cl- = 2Na ++ 2Cl- + Cu (OH) ₂
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.