Verified answer

1. C2H5OH + CuO =t°= CH3CHO + Cu↓ + H2O

2. CH3CHO + Ag2O == CH3COOH + 2Ag↓ (амиачный раствор)

3. CH3COOH + Cl2 == CH2ClCOOH + HCl (красный фосфор)

4. CH2ClCOOH + 2NH3 == CH2NH2COOH + NH4Cl