Question

Write a word equation and then a balanced equation for the reaction taking place when:

Dilute hydrochloric acid reacts with iron filings.

Answer 1

1. \[\ce{Iron filings + Hydrochloric acid (dil{.}) -> Iron (II) chloride + Hydrogen}\]
2. \[\ce{Fe_{(s)} + 2HCl(dil{.}) -> FeCl2_{(aq)} + H2_{(g)}}\]

Answer 2

1. \[\ce{Hydrochloric acid + Iron -> Iron(III) chloride + Hydrogen}\]
2. \[\ce{6HCl_{(aq)} + 2Fe_{(s)} −> 2FeCl3_{(aq)} + 3H2_{(g)}}\]