Write an equation for the reactions of hydrochloric acid on :

(a) silver nitrate solution

(b) magnesium foil

(c) caustic soda solution

(d) zinc carbonate

(e) manganese (IV) oxide

(f) copper oxide

(a) Silver nitrate solution
AgNO₃ + HCl ⟶ AgCl (white ppt.) + HNO₃

(b) Magnesium foil
Mg + 2HCl ⟶ MgCl₂ + H₂

(c) Caustic soda solution
NaOH + HCl ⟶ NaCl + H₂O

(d) Zinc carbonate
ZnCO₃ + 2HCl [dil.] ⟶ ZnCl₂ + H₂O + CO₂ [g.]

(e) Manganese (IV) oxide
$\text{MnO}$2 + \underset{\text{Conc.}}{\text{4HCl}} \xrightarrow{\Delta} \text{MnCl}2 + 2\text{H}2\text{O} + \text{Cl}2 ↑

(f) Copper oxide
CuO + 2HCl ⟶ CuCl₂ + H₂O