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fe oh 2 + hno3 → fe no3 3 + no2 + h2o
fe oh 2 + o2 + h2o → fe oh 3
fe hno3 fe no3 3 no h2o
fe2o3 + h2o → fe oh 3
feo+hno3 fe no3 3+no2+h2o
fe oh 3 fe2o3 + h2o
fe no3 2 + hno3
fe no3 3 + h2o2
fe3c+hno3 fe no3 3+co2+no2+h2o
fe3o4+hno3 fe no3 3+no+h2o
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