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Question

Write word equations and then balanced equations for the reaction taking place when

Dilute hydrochloric acid reacts with iron filings.


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Solution

Iron filings react with dilute hydrochloric acid:

  • When dilute hydrochloric acid reacts with iron fillings, it produces Ferrous chloride or Iron(II) chloride (FeCl2) and hydrogen gas (H2).
  • The word equation can be written as: DiluteHydrochloricacid+IronIron(II)chloride+Hydrogengas
  • It is an example of a displacement reaction in which iron being more reactive displaces hydrogen from dilute Hydrochloric acid.

Balanced reaction:

  • The balanced reaction is as follows:
  • 2HCl(aq)Hydrochloricacid(dilute)+Fe(s)IronFeCl2(aq)Iron(II)chloride+H2(g)Hydrogen

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