Ba(HSO3)2+2NaOH=BaSO3↓+Na2SO3+2H2O (亚硫酸钡少量）
Ba(HSO3)2+NaOH=BaSO3↓+NaHSO3+H2O (氢氧化钠少量）
量不同,产物不同,注意就行了
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