(共10分)写出符合要求的离子方程式 1)向FeBr2溶液中通入少量Cl2___________________________________________ 2)向NaAlO2-溶液中通入足量CO2________________________________________ 3)Ba(OH)2溶液中加入足量NaHCO3____________________________________ 4)Na2O2投入FeCl2溶液中_______________________________________________ 5)NaHCO3溶液中有少量Na2CO3的除杂反应_______________________________ |