balance the chemical equation :-
1. feO3+CO → Fe + CO2
2. NH3+O2 → NO+H2O
3. Fe + H2O → Fe3O4+H2
4. CuSO4+Zn → Cu + ZnSO4
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Heya mate..here is ur answer...There is something wrong in ur que. no. 2..plz check it..
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please let me know where is the mistake in que. 2
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