请按要求写出能生成氢氧化钠的反应的化学方程式:

请按要求写出能生成氢氧化钠的反应的化学方程式:

答案


Na2O+H2O=2NaOH ;  2Na+2H2O=2NaOH+H2↑ ;  Na2CO3+Ba(OH)2=BaCO3↓+2NaOH  
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