Na(2)CO(3)+Fe(2)O(3) overset(Delta)(to)A...

`Na_(2)CO_(3)+Fe_(2)O_(3) overset(Delta)(to)A+CO_(2)` what is A in the reaction?

`NaFeO_(2)`

`Na_(2)FeO_(3)`

`Fe_(3)O_(4)`

`Na_(2)FeO_(4)`

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