Question

ДАЮ 80Б помогите сделать

Answer 1

Ответ:

1)

2Na + 2H₂O = 2NaOH + H₂

2NaOH + SO₂ = Na₂SO₃ + H₂O

3NaOH + FeCl₃ = 3NaCl+ Fe(OH)₃

2)

2Zn + O₂ = 2ZnO

ZnO + 2HNO₃ = Zn(NO₃)₂ + H₂O

Zn(NO₃)₂ + 2KOH = 2KNO₃ + Zn(OH)₂

Zn(OH)₂ ---t--> ZnO + H₂O

3)

2Cu + O₂ = 2CuO

CuO + 2HCl = CuCl₂ + H₂O

CuCl₂ + 2NaOH = Cu(OH)₂ + 2NaCl

Cu(OH)₂ + H₂SO₄ = CuSO₄ + 2H₂O

CuSO₄ + 2KOH = Cu(OH)₂ + K₂SO₄

Объяснение: