Ответ:
4Na+2H2O=4NaOH
2NaOH+H2CO3=Na2CO3+2H2O
Na2CO3+H2SO4=Na2SO4+H2CO3
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Ответ:
4Na+2H2O=4NaOH
2NaOH+H2CO3=Na2CO3+2H2O
Na2CO3+H2SO4=Na2SO4+H2CO3