The equation Fe + H2SO3 -> FeSO3 + H2

  1. Detailed information about the chemical equation: This equation represents the reaction process between iron (Fe) and sulfurous acid (H2SO3) to produce iron (II) sulfate (FeSO3) and hydrogen gas (H2).

  2. Reaction conditions: This reaction usually occurs under normal temperature and pressure conditions (at room temperature and atmospheric pressure). Additionally, to speed up the reaction, a catalyst can be used or the temperature can be increased.

  3. Reaction process: In the reaction, the iron ion (Fe) and two hydrogen ions from the sulfurous acid (H2SO3) combine to form hydrogen gas (H2) and the sulfate ion (SO3) combines with the iron ion (Fe) to form iron (II) sulfate (FeSO3).

  4. Phenomenon observed: When iron reacts with sulfurous acid, we can observe hydrogen gas bubbles appearing, and at the same time, we get a white precipitate of iron (II) sulfate.

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