Write word equations and then balance equations for the reaction taking place when: (a) dilute sulphuric acid reacts with zinc granules. (b) dilute hydrochloric acid reacts with magnesium ribbon. (c) dilute sulphuric acid reacts with aluminium powder, (d) dilute hydrochloric acid reacts with ions filings.
(a) Step I Zinc granule + dil. Hydrochloric acid → Zinc chloride + Hydrogen gas Step II Zn(s) + 2HC1 (aq) → ZnCl2(aq) + H2(g) (b) Step I Magnesium+dil. Hydrochloric acid → Magnesium chloride + Hydrogen gas Step II Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g) (c) Step I Aluminium + dil. Sulphuric acid → Aluminium sulphate + Hydrogen gas Step II 2Al(s) + 3H2SO4(aq) → Al2(SO4)3(aq) + 3H2(g) (d) Step I Iron + dil. Hydrochloric acid → Iron chloride + Hydrogen Step II 2Fe(s) + 3HCl(aq) → Fe2Cl3(aq) + 3H2(g)
