Помогите с номерами 3, 4 и 5.
3) 5C4H8+8KMnO4+ 12H2SO4=10CH3COOH+ 8MnSO4+4K2SO4+12H2O 4)CH3COH+Ag2O= =CH3COOH+2Ag 5)C6H6+3Cl=C6H6Cl6