Ответ:
1) fe+o2=fe2o3
2) fe2o3+hcl=fecl3+h2o
3)fecl3+h2o=fe(oh)3+hcl
4)fe(oh)3+h2so4=fe2(so4)3+h2o
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Ответ:
1) fe+o2=fe2o3
2) fe2o3+hcl=fecl3+h2o
3)fecl3+h2o=fe(oh)3+hcl
4)fe(oh)3+h2so4=fe2(so4)3+h2o