Complete and balance the following chemical equations:
$(i)$ $CaCO_{3} + HCl \longrightarrow$
$(ii)$ $Al + HCl \longrightarrow$
$(iii)$ $MnO_{2} + HCl \longrightarrow$

(N/A) $(i)$ The reaction between calcium carbonate and hydrochloric acid produces calcium chloride,water,and carbon dioxide: $CaCO_{3} + 2HCl \longrightarrow CaCl_{2} + H_{2}O + CO_{2}$
$(ii)$ The reaction between aluminium and hydrochloric acid produces aluminium chloride and hydrogen gas: $2Al + 6HCl \longrightarrow 2AlCl_{3} + 3H_{2}$
$(iii)$ The reaction between manganese dioxide and hydrochloric acid produces manganese$(II)$ chloride,chlorine gas,and water: $MnO_{2} + 4HCl \longrightarrow MnCl_{2} + Cl_{2} + 2H_{2}O$