Question

1) K²O+ ... = К²СО³ 2) ... + CuO = CuCl² +... 3) FeO + ... = ... + H²O4) ... + ... = ZnSO⁴ + Н²↑​

Answer 1

1) K2O + CO2 => K2CO3

2) 2HCl + CuO => CuCl2 + H2O

3) FeO + H2 => Fe + H2O

4) Zn + H2SO4 => ZnSO4 + H2

Answer 2

It appears you've provided a series of chemical reactions with incomplete information. To balance these chemical equations, we'll need to fill in the missing reactants and products and then balance the equations. Here's an attempt to complete and balance each equation:

1. K₂O + H₂CO₃ = 2K₂CO₃ (Balanced equation: 2K₂O + H₂CO₃ = 2K₂CO₃)

2. CuO + 2HCl = CuCl₂ + H₂O (Balanced equation: CuO + 2HCl = CuCl₂ + H₂O)

3. FeO + H₂SO₄ = FeSO₄ + H₂O (Balanced equation: FeO + H₂SO₄ = FeSO₄ + H₂O)

4. Zn + H₂SO₄ = ZnSO