Cl2+2KBr=2KCl+Br2CH3CHBrCH2BrCH3COONa+H2OCH3CH2CHO+2Cu(OH)2=CH3CH2COOH+Cu2O+2H2O53结构明显有问题54我猜是苯酚钠 生成C6H5OH+NaHCO3