2Na+H2=>2NaH
2Na+2H2O=>2NaOH+H2O
2NaOH+H2CO3=>Na2CO3+2H2O
Na2CO3+Ca(OH)2=>CaCO3+2NaOH
2NaH=2Na+H22Na+2H2O=2NaOH+H2O2NaOH+H2CO3=Na2CO3+2H2ONa2CO3+Ca(OH)2=CaCO3+2NaOH
2Na+H2=>2NaH
2Na+2H2O=>2NaOH+H2O
2NaOH+H2CO3=>Na2CO3+2H2O
Na2CO3+Ca(OH)2=>CaCO3+2NaOH
2NaH=2Na+H2
2Na+2H2O=2NaOH+H2O
2NaOH+H2CO3=Na2CO3+2H2O
Na2CO3+Ca(OH)2=CaCO3+2NaOH