Question

Write word equations and then balanced 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 iron filings.

Answer 1

(a) Sulphuric acid + Zinc $\rightarrow$Zinc sulfate + Hydrogen
H2SO4(aq)+Zn(s)$\rightarrow$ZnSO4(aq)+H2(g)
(b) Hydrochloric acid + Magnesium$\rightarrow$Magnesium chloride + Hydrogen
2HCl(aq)+Mg(s)$\rightarrow$MgCl2(aq)+H2(g)
(c) Sulphuric acid + Aluminium$\rightarrow$Aluminium sulphate + Hydrogen
3H2SO4(aq)+2Al(s)$\rightarrow$Al2(SO4)3(aq)+3H2(g)
(d) Hydrochloric acid + Iron → Ferric chloride + Hydrogen
6HCl(aq)+2Fe(s)$\rightarrow$2FeCl3(aq)+3H2(g)