Ответ:
Na + 02 = Na2O
Na2O + H2O = 2NaOH
2NaOH + Н2CO3 = Na2CO3 + H2O
Na2CO3 + Ba(NO3)2 = BaCO3 + 2NaNO3
BaCO3 + 2Cl = BaCl2 + CO3
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Ответ:
Na + 02 = Na2O
Na2O + H2O = 2NaOH
2NaOH + Н2CO3 = Na2CO3 + H2O
Na2CO3 + Ba(NO3)2 = BaCO3 + 2NaNO3
BaCO3 + 2Cl = BaCl2 + CO3