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Fe(OH)3 and H2SO42. K3. Mg + 2HNO3 Mg(NO3)2 + H24. 2 Fe(OH)3 + 3 H2S → Fe2S3 + 6 H2O5. CaNO36. 2 Li + 2 H2O → H2 + 2 LiOH8. Li