Write the reaction equation: Fe2 (SO4) 3 – Fe (OH) 3 – Fe2O3 – Fe2 (SO4) 3

Explanation of the solution:
1st reaction: interaction of iron (III) sulfate with sodium hydroxide to form water-insoluble iron (III) hydroxide and sodium sulfate;
2nd reaction: thermal decomposition of iron (III) hydroxide with the formation of iron (III) oxide and water;
3rd reaction: the interaction of iron (III) oxide and sulfuric acid with the formation of iron (III) sulfate and water.



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