FeCl3 --> Fe(ОН)3 --> Fe2(SO4)3 --> BaSO4

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вопрос

The chemical reaction shown involves the following steps:

FeCl3 (iron (III) chloride) reacts with a base (such as NaOH) to form Fe(OH)3 (iron (III) hydroxide).Fe(OH)3 can further react with sulfuric acid (H2SO4) to form Fe2(SO4)3 (iron (III) sulfate).Lastly, Fe2(SO4)3 can react with barium chloride (BaCl2) to form BaSO4 (barium sulfate).

Overall, the reaction can be written as:

FeCl3 + NaOH → Fe(OH)3 + 3NaCl
Fe(OH)3 + 3H2SO4 → Fe2(SO4)3 + 6H2O
Fe2(SO4)3 + 3BaCl2 → 3BaSO4 + Fe2(Cl)6

Each step involves a different chemical reaction, but in this sequence, the end product is BaSO4.